IPv4 Multicast Address Space

Last Updated
2026-08-20
Expert(s)
Stig Venaas
Note
Host Extensions for IP Multicasting [RFC 1112] specifies the extensions
required of a host implementation of the Internet Protocol (IP) to
support multicasting.  The multicast addresses are in the range
224.0.0.0 through 239.255.255.255. Address assignments are listed below.

The range of addresses between 224.0.0.0 and 224.0.0.255, inclusive,
is reserved for the use of routing protocols and other low-level
topology discovery or maintenance protocols, such as gateway discovery
and group membership reporting.  Multicast routers should not forward
any multicast datagram with destination addresses in this range,
regardless of its TTL.
Formerly known as
IPv4 Multicast Address Space Registry
Available Formats

XML
HTML
TXT

Registries Included Below

Local Network Control Block (224.0.0.0 - 224.0.0.255 (224.0.0/24))

Registration Procedure(s)
Expert Review, IESG Approval, or Standards Action
Reference
[RFC 5771]
Note
(*)  It is only appropriate to use these values in explicitly-
configured experiments; they MUST NOT be shipped as defaults in
implementations.  See [RFC 3692] for details.
Request an Assignment
[https://www.iana.org/protocols/apply]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
224.0.0.0 Base Address (Reserved) [RFC 1112][Jon_Postel]
224.0.0.1 All Systems on this Subnet [RFC 1112][Jon_Postel]
224.0.0.2 All Routers on this Subnet [Jon_Postel]
224.0.0.3 Unassigned
224.0.0.4 DVMRP Routers [RFC 1075][Jon_Postel]
224.0.0.5 OSPFIGP OSPFIGP All Routers [RFC 2328][OSPF_WG_Chairs]
224.0.0.6 OSPFIGP OSPFIGP Designated Routers [RFC 2328][OSPF_WG_Chairs]
224.0.0.7 ST Routers [RFC 1190][Karen_Seo]
224.0.0.8 ST Hosts [RFC 1190][Karen_Seo]
224.0.0.9 RIP2 Routers [RFC 1723][Gary_S_Malkin]
224.0.0.10 EIGRP Routers [RFC 7868] 1996-03-01
224.0.0.11 Mobile-Agents [[Bill Simpson]]
224.0.0.12 DHCP Server / Relay Agent [[Unknown]]
224.0.0.13 All PIM Routers [Dino_Farinacci] 1996-03-01
224.0.0.14 RSVP-ENCAPSULATION [Bob_Braden] 1996-04-01
224.0.0.15 all-cbt-routers [Tony_Ballardie][RFC 2189] 1997-02-01
224.0.0.16 designated-sbm [Fred_Baker] 1997-06-01
224.0.0.17 all-sbms [Fred_Baker] 1997-06-01
224.0.0.18 VRRP [RFC 3768][RFC 9568]
224.0.0.19 IPAllL1ISs [Tony_Przygienda] 1999-10-01
224.0.0.20 IPAllL2ISs [Tony_Przygienda] 1999-10-01
224.0.0.21 IPAllIntermediate Systems [Tony_Przygienda] 1999-10-01
224.0.0.22 IGMP [Steve_Deering] 1999-10-01
224.0.0.23 GLOBECAST-ID [Piers_Scannell] 2000-03-01
224.0.0.24 OSPFIGP-TE [RFC 4973]
224.0.0.25 router-to-switch [Ishan_Wu] 2000-03-01
224.0.0.26 Unassigned
224.0.0.27 Al MPP Hello [Brian_Martinicky] 2000-03-01
224.0.0.28 ETC Control [Steve_Polishinski] 2000-03-01
224.0.0.29 GE-FANUC [Ian_Wacey] 2000-05-01
224.0.0.30 indigo-vhdp [Colin_Caughie] 2000-05-01
224.0.0.31 shinbroadband [Sakon_Kittivatcharapong] 2000-05-01
224.0.0.32 digistar [Brian_Kerkan] 2000-05-01
224.0.0.33 ff-system-management [Dave_Glanzer] 2003-03-01
224.0.0.34 pt2-discover [Ralph_Kammerlander] 2000-06-01
224.0.0.35 DXCLUSTER [Dirk_Koopman] 2000-07-01
224.0.0.36 DTCP Announcement [Patrick_Cipiere] 2001-01-01
224.0.0.37-224.0.0.68 zeroconfaddr (renew 12/02) [Erik_Guttman] 2001-12-01
224.0.0.69 all-AODV-RPL-nodes [RFC 9854] 2025-03-10
224.0.0.70-224.0.0.100 Unassigned
224.0.0.101 cisco-nhap [Mark_Bakke] 2001-12-01
224.0.0.102 HSRP [Ian_Wilson] 2001-12-01
224.0.0.103 MDAP [Johan_Deleu] 2002-02-01
224.0.0.104 Nokia MC CH [Morteza_Kalhour] 2002-10-01
224.0.0.105 ff-lr-address [Dave_Glanzer] 2003-03-01
224.0.0.106 All-Snoopers [RFC 4286]
224.0.0.107 PTP-pdelay [NIST: IEEE Std 1588][Kang_Lee] 2007-02-02
224.0.0.108 Saratoga [Lloyd_Wood] 2007-08-30 2011-03-17
224.0.0.109 LL-MANET-Routers [RFC 5498] 2011-02-23
224.0.0.110 IGRS [Xiaoyu_Zhou] 2009-01-20
224.0.0.111 Babel [RFC 8966]
224.0.0.112 MMA Device Discovery [Tom_White] 2011-11-02
224.0.0.113 AllJoyn [Craig_Dowell] 2011-11-18
224.0.0.114 Inter RFID Reader Protocol [Wayne_Wenyu_Liu] 2012-06-12
224.0.0.115 JSDP [J._Ryan_Stinnett] 2014-07-01
224.0.0.116 Device discovery/config [COMTECH_Kft.] 2016-10-20
224.0.0.117 DLEP Discovery [RFC 8175] 2017-04-03
224.0.0.118 MAAS [Mike_Pontillo] 2017-05-19
224.0.0.119 ALL_GRASP_NEIGHBORS [RFC 8990] 2017-07-20
224.0.0.120 3GPP MBMS SACH [Charles_Lo] [_3GPP] 2022-11-02
224.0.0.121 ALL_V4_RIFT_ROUTERS [RFC 9692] 2023-02-17
224.0.0.122 Network Virtualization Overlay (NVO) BUM Traffic [RFC 9624] 2024-02-02
224.0.0.123-224.0.0.149 Unassigned
224.0.0.150 Ramp AltitudeCDN MulticastPlus [Giovanni_Marzot] [Ramp_Holdings] 2019-03-13
224.0.0.151 Unassigned
224.0.0.152 WiseHome [Erick_MacDonald_Filzek] [IOT_COMPANY_SOLUCOES_TECNOLOGICAS_LTDA] 2023-08-09
224.0.0.153-224.0.0.250 Unassigned
224.0.0.251 mDNS [RFC 6762] 2000-04-01
224.0.0.252 Link-local Multicast Name Resolution [RFC 4795] 2011-03-17
224.0.0.253 Teredo [RFC 4380] 2010-02-14
224.0.0.254 RFC3692-style Experiment (*) [RFC 4727]
224.0.0.255 Unassigned

Internetwork Control Block (224.0.1.0 - 224.0.1.255 (224.0.1/24))

Registration Procedure(s)
Expert Review, IESG Approval, or Standards Action
Reference
[RFC 5771]
Request an Assignment
[https://www.iana.org/protocols/apply]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
224.0.1.0 VMTP Managers Group [RFC 1045][Dave_Cheriton]
224.0.1.1 NTP Network Time Protocol [RFC 5905][David_Mills]
224.0.1.2 SGI-Dogfight [Andrew_Cherenson]
224.0.1.3 Rwhod [Steve_Deering_2]
224.0.1.4 VNP [Dave_Cheriton]
224.0.1.5 Artificial Horizons - Aviator [Bruce_Factor]
224.0.1.6 NSS - Name Service Server [Bill_Schilit]
224.0.1.7 AUDIONEWS - Audio News Multicast [Martin_Forssen]
224.0.1.8 SUN NIS+ Information Service [Chuck_McManis]
224.0.1.9 MTP Multicast Transport Protocol [Susie_Armstrong]
224.0.1.10 IETF-1-LOW-AUDIO [Steve_Casner]
224.0.1.11 IETF-1-AUDIO [Steve_Casner]
224.0.1.12 IETF-1-VIDEO [Steve_Casner]
224.0.1.13 IETF-2-LOW-AUDIO [Steve_Casner]
224.0.1.14 IETF-2-AUDIO [Steve_Casner]
224.0.1.15 IETF-2-VIDEO [Steve_Casner]
224.0.1.16 MUSIC-SERVICE
224.0.1.17 SEANET-TELEMETRY
224.0.1.18 SEANET-IMAGE
224.0.1.19 MLOADD [Bob_Braden] 1996-04-01
224.0.1.20 any private experiment [Jon_Postel]
224.0.1.21 DVMRP on MOSPF [[John Moy]]
224.0.1.22 SVRLOC [John_Veizades] 1995-05-01
224.0.1.23 XINGTV [Howard_Gordon]
224.0.1.24 microsoft-ds [<arnoldm&microsoft.com>]
224.0.1.25 nbc-pro [<bloomer&birch.crd.ge.com>]
224.0.1.26 nbc-pfn [<bloomer&birch.crd.ge.com>]
224.0.1.27 lmsc-calren-1 [Yea_Uang] 1994-11-01
224.0.1.28 lmsc-calren-2 [Yea_Uang] 1994-11-01
224.0.1.29 lmsc-calren-3 [Yea_Uang] 1994-11-01
224.0.1.30 lmsc-calren-4 [Yea_Uang] 1994-11-01
224.0.1.31 ampr-info [Rob_Janssen] 1995-01-01
224.0.1.32 mtrace [Steve_Casner_2] 1995-01-01
224.0.1.33 RSVP-encap-1 [Bob_Braden] 1996-04-01
224.0.1.34 RSVP-encap-2 [Bob_Braden] 1996-04-01
224.0.1.35 SVRLOC-DA [John_Veizades] 1995-05-01
224.0.1.36 rln-server [Brian_Kean] 1995-08-01
224.0.1.37 proshare-mc [Mark_Lewis] 1995-10-01
224.0.1.38 Unassigned
224.0.1.39 cisco-rp-announce [Dino_Farinacci] 1996-03-01
224.0.1.40 cisco-rp-discovery [Dino_Farinacci] 1996-03-01
224.0.1.41 gatekeeper [Jim_Toga] 1996-05-01
224.0.1.42 iberiagames [Jose_Luis_Marocho] 1996-07-01
224.0.1.43 nwn-discovery [Arnoud_Zwemmer] 1996-11-01
224.0.1.44 nwn-adaptor [Arnoud_Zwemmer] 1996-11-01
224.0.1.45 isma-1 [Stephen_Dunne] 1997-01-01
224.0.1.46 isma-2 [Stephen_Dunne] 1997-01-01
224.0.1.47 telerate [Wenjie_Peng] 1997-01-01
224.0.1.48 ciena [Mike_Rodbell] 1997-01-01
224.0.1.49 dcap-servers [RFC 2114]
224.0.1.50 dcap-clients [RFC 2114]
224.0.1.51 mcntp-directory [Heiko_Rupp] 1997-01-01
224.0.1.52 mbone-vcr-directory [Wieland_Holdfelder] 1997-01-01
224.0.1.53 heartbeat [Louis_Mamakos] 1997-03-01
224.0.1.54 sun-mc-grp [Michael_DeMoney] 1997-04-01
224.0.1.55 extended-sys [David_Poole] 1997-04-01
224.0.1.56 pdrncs [Paul_Wissenbach] 1997-06-01
224.0.1.57 tns-adv-multi [Jerome_Albin] 1997-06-01
224.0.1.58 vcals-dmu [Masato_Shindoh] 1997-08-01
224.0.1.59 zuba [Dan_Jackson] 1997-09-01
224.0.1.60 hp-device-disc [Shivaun_Albright] 1997-07-01
224.0.1.61 tms-production [Asad_Gilani] 1997-07-01
224.0.1.62 sunscalar [Terry_Gibson] 1997-08-01
224.0.1.63 mmtp-poll [Bryan_Costales] 1997-09-01
224.0.1.64 compaq-peer [Victor_Volpe] 1997-10-01
224.0.1.65 iapp [Bob_Meier] 1997-12-01
224.0.1.66 multihasc-com [Darcy_Brockbank] 1997-12-01
224.0.1.67 serv-discovery [Chas_Honton] 1997-12-01
224.0.1.68 mdhcpdisover [RFC 2730]
224.0.1.69 MMP-bundle-discovery1 [Gary_Scott_Malkin] 1998-02-01
224.0.1.70 MMP-bundle-discovery2 [Gary_Scott_Malkin] 1998-02-01
224.0.1.71 XYPOINT DGPS Data Feed [NE-TEAM_at_telecomsys.com] 1998-02-01
224.0.1.72 GilatSkySurfer [Yossi_Gal] 1998-02-01
224.0.1.73 SharesLive [Shane_Rowatt] 1997-03-01
224.0.1.74 NorthernData [[Sheers]]
224.0.1.75 SIP [[Schulzrinne]]
224.0.1.76 IAPP [Henri_Moelard] 1998-03
224.0.1.77 AGENTVIEW [Ram_Iyer] 1998-03-01
224.0.1.78 Tibco Multicast1 [Raymond_Shum] 1998-04-01
224.0.1.79 Tibco Multicast2 [Raymond_Shum] 1998-04-01
224.0.1.80 MSP [Evan_Caves] 1998-06-01
224.0.1.81 OTT (One-way Trip Time) [Beverly_Schwartz] 1998-06-01
224.0.1.82 TRACKTICKER [Alan_Novick] 1998-08-01
224.0.1.83 dtn-mc [Bob_Gaddie] 1998-08-01
224.0.1.84 jini-announcement [Bob_Scheifler] 1998-08-01
224.0.1.85 jini-request [Bob_Scheifler] 1998-08-01
224.0.1.86 sde-discovery [Peter_Aronson] 1998-08-01
224.0.1.87 DirecPC-SI [Doug_Dillon] 1998-08-01
224.0.1.88 B1RMonitor [Ed_Purkiss] 1998-09-01
224.0.1.89 3Com-AMP3 dRMON [Prakash_Banthia] 1998-09-01
224.0.1.90 imFtmSvc [Zia_Bhatti] 1998-09-01
224.0.1.91 NQDS4 [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.92 NQDS5 [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.93 NQDS6 [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.94 NLVL12 [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.95 NTDS1 [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.96 NTDS2 [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.97 NODSA [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.98 NODSB [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.99 NODSC [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.100 NODSD [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.101 NQDS4R [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.102 NQDS5R [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.103 NQDS6R [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.104 NLVL12R [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.105 NTDS1R [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.106 NTDS2R [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.107 NODSAR [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.108 NODSBR [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.109 NODSCR [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.110 NODSDR [Michael_Rosenberg] [Nasdaq_Inc] 1998-09-01
224.0.1.111 MRM [Liming_Wei] 1998-10-01
224.0.1.112 TVE-FILE [Dean_Blackketter] 1998-11-01
224.0.1.113 TVE-ANNOUNCE [Dean_Blackketter] 1998-11-01
224.0.1.114 Mac Srv Loc [Bill_Woodcock] 1998-11-01
224.0.1.115 Simple Multicast [Jon_Crowcroft] 1998-11-01
224.0.1.116 SpectraLinkGW [Mark_Hamilton] 1998-11-01
224.0.1.117 dieboldmcast [Gene_Marsh] 1998-11-01
224.0.1.118 Tivoli Systems [Jon_Gabriel] 1998-12-01
224.0.1.119 pq-lic-mcast [Bob_Sledge] 1998-12-01
224.0.1.120 Pico [Pico_Sales] [Pico] 2007-03-01
224.0.1.121 Pipesplatform [Daniel_Dissett] 1998-12-01
224.0.1.122 LiebDevMgmg-DM [Mike_Velten] 1999-01-01
224.0.1.123 TRIBALVOICE [Nigel_Thompson] 1999-01-01
224.0.1.124 Unassigned (Retracted 1/29/01)
224.0.1.125 PolyCom Relay1 [[Coutiere]]
224.0.1.126 Infront Multi1 [Morten_Lindeman] 1999-03-01
224.0.1.127 XRX DEVICE DISC [Michael_Wang] 1999-03-01
224.0.1.128 CNN [Joel_Lynch] 1999-04-01
224.0.1.129 PTP-primary [NIST: IEEE Std 1588][Kang_Lee] 2007-02-02
224.0.1.130 PTP-alternate1 [NIST: IEEE Std 1588][Kang_Lee] 2007-02-02
224.0.1.131 PTP-alternate2 [NIST: IEEE Std 1588][Kang_Lee] 2007-02-02
224.0.1.132 PTP-alternate3 [NIST: IEEE Std 1588][Kang_Lee] 2007-02-02
224.0.1.133 ProCast [Shai_Revzen] 1999-04-01
224.0.1.134 3Com Discp [Peter_White] 1999-04-01
224.0.1.135 CS-Multicasting [Nedelcho_Stanev] 1999-05-01
224.0.1.136 TS-MC-1 [Darrell_Sveistrup] 1999-06-01
224.0.1.137 Make Source [Anthony_Daga] 1999-06-01
224.0.1.138 Teleborsa [Paolo_Strazzera] 1999-06-01
224.0.1.139 SUMAConfig [Walter_Wallach] 1999-07-01
224.0.1.140 capwap-ac [RFC 5415]
224.0.1.141 DHCP-SERVERS [Eric_Hall] 1999-10-01
224.0.1.142 CN Router-LL [Ian_Armitage] 1999-08-01
224.0.1.143 EMWIN [Antonio_Querubin] 2008-02-04
224.0.1.144 Alchemy Cluster [Stacey_O_Rourke][Stacey_O_Rourke_2] 1999-08-01
224.0.1.145 Satcast One [Julian_Nevell] 1999-08-01
224.0.1.146 Satcast Two [Julian_Nevell] 1999-08-01
224.0.1.147 Satcast Three [Julian_Nevell] 1999-08-01
224.0.1.148 Intline [Robert_Sliwinski] 2000-02-01
224.0.1.149 8x8 Multicast [Mike_Roper] 1999-09-01
224.0.1.150 Ramp AltitudeCDN MulticastPlus [Giovanni_Marzot] [Ramp_Holdings] 2019-03-13
224.0.1.151 Intline-1 [Robert_Sliwinski] 2000-02-01
224.0.1.152 Intline-2 [Robert_Sliwinski] 2000-02-01
224.0.1.153 Intline-3 [Robert_Sliwinski] 2000-02-01
224.0.1.154 Intline-4 [Robert_Sliwinski] 2000-02-01
224.0.1.155 Intline-5 [Robert_Sliwinski] 2000-02-01
224.0.1.156 Intline-6 [Robert_Sliwinski] 2000-02-01
224.0.1.157 Intline-7 [Robert_Sliwinski] 2000-02-01
224.0.1.158 Intline-8 [Robert_Sliwinski] 2000-02-01
224.0.1.159 Intline-9 [Robert_Sliwinski] 2000-02-01
224.0.1.160 Intline-10 [Robert_Sliwinski] 2000-02-01
224.0.1.161 Intline-11 [Robert_Sliwinski] 2000-02-01
224.0.1.162 Intline-12 [Robert_Sliwinski] 2000-02-01
224.0.1.163 Intline-13 [Robert_Sliwinski] 2000-02-01
224.0.1.164 Intline-14 [Robert_Sliwinski] 2000-02-01
224.0.1.165 Intline-15 [Robert_Sliwinski] 2000-02-01
224.0.1.166 marratech-cc [Peter_Parnes] 2000-02-01
224.0.1.167 EMS-InterDev [Stephen_T_Lyda] 2000-02-01
224.0.1.168 itb301 [Bodo_Rueskamp] 2000-03-01
224.0.1.169 rtv-audio [Chris_Adams] 2000-07-01
224.0.1.170 rtv-video [Chris_Adams] 2000-07-01
224.0.1.171 HAVI-Sim [Stephan_Wasserroth] 2000-07-01
224.0.1.172 Nokia Cluster [Stacey_O_Rourke][Stacey_O_Rourke_2] 1999-08-01
224.0.1.173 host-request [Keith_Thompson] 2001-06-01
224.0.1.174 host-announce [Keith_Thompson] 2001-06-01
224.0.1.175 ptk-cluster [Robert_Hodgson] 2001-12-01
224.0.1.176 Proxim Protocol [Gajendra_Shukla] 2002-02-01
224.0.1.177 Gemtek Systems [Alex_Lee] 2002-10-01
224.0.1.178 IEEE IAPP [Stuart_Kerry] 2003-01-01
224.0.1.179 1451_Dot5_802_Discovery [Ryon_Coleman] 2006-04-11
224.0.1.180 1451_Dot5_802_Group_1 [Ryon_Coleman] 2006-04-11
224.0.1.181 1451_Dot5_802_Group_2 [Ryon_Coleman] 2006-04-11
224.0.1.182 1451_Dot5_802_Group_3 [Ryon_Coleman] 2006-04-11
224.0.1.183 1451_Dot5_802_Group_4 [Ryon_Coleman] 2006-04-11
224.0.1.184 VFSDP [Adam_Yellen] 2007-03-06
224.0.1.185 ASAP [RFC 5352]
224.0.1.186 SL-MANET-ROUTERS [RFC 6621]
224.0.1.187 All CoAP Nodes [RFC 7252] 2013-07-25
224.0.1.188 BRSDP [Vanya_Levy] [Semtech_Corporation] 2019-02-20
224.0.1.189 Amateur radio DMR [ETSI TS 102 361-3][Jean-Marc_MAGNIER] [Jean-Marc_MAGNIER] 2021-02-08
224.0.1.190 All CoRE Resource Directories [RFC 9176] 2021-03-16
224.0.1.191-224.0.1.255 Unassigned

AD-HOC Block I (224.0.2.0 - 224.0.255.255)

Registration Procedure(s)
Expert Review, IESG Approval, or Standards Action
Reference
[RFC 5771]
Request an Assignment
[https://www.iana.org/protocols/apply]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
224.0.2.0 Unassigned
224.0.2.1 "rwho" Group (BSD) (unofficial) [Jon_Postel]
224.0.2.2 SUN RPC PMAPPROC_CALLIT [Brendan_Eic]
224.0.2.3 EPSON-disc-set [SEIKO_EPSON_Corp] 2005-01-01
224.0.2.4 All C1222 Nodes [RFC 6142] 2009-08-28
224.0.2.5 Monitoring Discovery Protocol [Alan_Robertson] 2012-04-17
224.0.2.6 BitSend MediaStreams [Carl-Johan_Sjöberg] 2012-04-25
224.0.2.7-224.0.2.8 rxWARN [Caleb_Bell] 2012-11-19
224.0.2.9 DATV streams [Grant_Taylor] 2016-10-04
224.0.2.10 swapapp_multicast [Applykane] 2017-05-19
224.0.2.11 LDA Discovery Service [Juan_Ayas] [LDA_Audio_Tech] 2018-10-17
224.0.2.12 CNP-HD-PLC [Ernst_EDER] [LonMark_International] 2018-11-15
224.0.2.13 BSE [Rami_Chalhoub] [BSE] 2019-01-17
224.0.2.14 OPC Discovery [OPC_Foundation] [OPC_Foundation] 2019-08-19
224.0.2.15 Unassigned
224.0.2.16-224.0.2.17 unidns [Xie_Shao] [Xie_Shao] 2023-01-18
224.0.2.18 vivoh-directory-1 [Giovanni_Marzot_2] [Vivoh] 2023-10-13
224.0.2.19 vivoh-directory-2 [Giovanni_Marzot_2] [Vivoh] 2023-10-13
224.0.2.20-224.0.2.26 RGB Spectrum [Lynton_Auld] [RGB_Spectrum] 2024-11-04
224.0.2.27 OSIBYTES/PYBLOX Global Service [Ryan_Taylor] 2025-11-13
224.0.2.28-224.0.2.63 Unassigned
224.0.2.64-224.0.2.95 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 1996-04 2007-07
224.0.2.96-224.0.2.127 BallisterNet [Tom_Ballister] [Tom_Ballister] 1997-07-01 2021-06-11
224.0.2.128-224.0.2.191 WOZ-Garage [Douglas_Marquardt] 1997-02-01
224.0.2.192-224.0.2.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 1997-02-01
224.0.3.0-224.0.3.255 RFE Generic Service [Daniel_Steinber]
224.0.4.0-224.0.4.255 RFE Individual Conferences [Daniel_Steinber]
224.0.5.0-224.0.5.127 CDPD Groups [[Bob Brenner]]
224.0.5.128-224.0.5.191 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 1998-10-01
224.0.5.192-224.0.5.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2001-08-01
224.0.6.0-224.0.6.127 Cornell ISIS Project [[Tim Clark]]
224.0.6.128-224.0.6.143 MoeSingh [Moe_Singh] 2009-09-24
224.0.6.144 QDNE [Architecture_Team] 2018-01-03
224.0.6.145-224.0.6.150 Unassigned
224.0.6.151 Canon-Device-control [Hiroshi_Okubo] 2014-08-01
224.0.6.152 NGG-Publishing [Anders_Andersen] [Nova_Goose_Global_Publishing_Group_Inc.] 2026-08-20
224.0.6.153-224.0.6.191 Unassigned
224.0.6.192-224.0.6.255 OneChicago multicast [Brian_Trudeau] 2014-09-19
224.0.7.0-224.0.7.255 Where-Are-You [Bill_Simpson] 1994-11-01
224.0.8.0 Cell Broadcast Encapsulation [Meridian_Labs_LTD][LIRNEasia] [Meridian_Labs_LTD] [LIRNEasia] 2017-10-13
224.0.8.1-224.0.8.255 Civic Telemetry [Meridian_Labs_LTD][LIRNEasia] [Meridian_Labs_LTD] [LIRNEasia] 2020-10-07
224.0.9.0-224.0.9.255 The Thing System [Carl_Malamud] 1998-04-01
224.0.10.0-224.0.10.255 DLSw Groups [Choon_Lee] 1996-04-01
224.0.11.0-224.0.11.255 NCC.NET Audio [David_Rubin] 1996-08-01
224.0.12.0-224.0.12.63 Microsoft and MSNBC [Tom_Blank] 1996-11-01
224.0.12.64-224.0.12.231 AsiaNext [Lau_Wei_Lun] [Asia_Digital_Exchange] 2023-03-03
224.0.12.136-224.0.12.191 Unassigned
224.0.12.192-224.0.12.243 Deribit [Maarten_van_Malland] [Sentillia] 2025-10-10
224.0.12.244-224.0.12.255 Unassigned
224.0.13.0-224.0.13.255 WorldCom Broadcast Services [Tony_Barber] 1997-01-01
224.0.14.0-224.0.14.255 NLANR [Duane_Wessels] 1997-02-01
224.0.15.0-224.0.15.255 Agilent Technologies [IP_Admin] 1997-02-01
224.0.16.0-224.0.16.255 XingNet [Mika_Uusitalo] 1997-04-01
224.0.17.0-224.0.17.31 Mercantile & Commodity Exchange [Asad_Gilani] 1997-07-01
224.0.17.32-224.0.17.63 NDQMD1 [Michael_Rosenberg] [Nasdaq_Inc] 1999-03-01
224.0.17.64-224.0.17.127 ODN-DTV [Richard_Hodges] 1999-03-01
224.0.17.128-224.0.17.255 Unassigned
224.0.18.0-224.0.18.255 Dow Jones [Wenjie_Peng] 1997-01-01
224.0.19.0-224.0.19.63 Walt Disney Company [Scott_Watson] 1997-08-01
224.0.19.64-224.0.19.95 Cal Multicast [Ed_Moran] 1997-10-01
224.0.19.96-224.0.19.127 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 1997-10 2007-07
224.0.19.128-224.0.19.191 IIG Multicast [Wayne_Carr] 1997-12-01
224.0.19.192-224.0.19.207 Metropol [James_Crawford] 1998-05-01
224.0.19.208-224.0.19.239 Xenoscience, Inc. [Mary_Timm] 1998-07-01
224.0.19.240-224.0.19.255 MJDPM [Matthew_Straight] 2007-03-01
224.0.20.0-224.0.20.63 MS-IP/TV [Tony_Wong] 1998-07-01
224.0.20.64-224.0.20.127 Reliable Network Solutions [Werner_Vogels] 1998-08-01
224.0.20.128-224.0.20.143 TRACKTICKER Group [Alan_Novick] 1998-08-01
224.0.20.144-224.0.20.207 CNR Rebroadcast MCA [Robert_Sautter] 1999-08-01
224.0.20.208-224.0.20.211 CIX Trading [Darren_Molloy] [CIX_Trading] 2025-09-18
224.0.20.212-224.0.20.255 Unassigned
224.0.21.0-224.0.21.127 Talarian MCAST [Geoff_Mendal] 1999-01-01
224.0.21.128-224.0.21.255 Unassigned
224.0.22.0-224.0.22.239 WORLD MCAST [Ian_Stewart] 1999-06-01
224.0.22.240-224.0.22.255 Jones International [Jim_Ginsburg] 2007-10-31
224.0.23.0 ECHONET [Takeshi_Saito] 2003-02-01
224.0.23.1 Ricoh-device-ctrl [Akihiro_Nishida] 2003-02-01
224.0.23.2 Ricoh-device-ctrl [Akihiro_Nishida] 2003-02-01
224.0.23.3-224.0.23.10 Telefeed [Wally_Beddoe] 2003-04-01
224.0.23.11 SpectraTalk [Madhav_Karhade] 2003-05-01
224.0.23.12 KNXnet/IP [Joost_Demarest] [KNX_Association] 2003-07-01 2023-08-23
224.0.23.13 TVE-ANNOUNCE2 [Michael_Dolan] 2003-10-01
224.0.23.14 DvbServDisc [Bert_van_Willigen] 2004-01-01
224.0.23.15-224.0.23.31 MJDPM [Matthew_Straight] 2007-03-01
224.0.23.32 Norman MCMP [Kristian_A_Bognaes] 2004-02-01
224.0.23.33 RRDP [Tetsuo_Hoshi] 2004-06-01
224.0.23.34 AF_NA [Bob_Brzezinski] 2005-10-28
224.0.23.35 AF_OPRA_NBBO [Bob_Brzezinski] 2005-10-28
224.0.23.36 AF_OPRA_FULL [Bob_Brzezinski] 2005-10-28
224.0.23.37 AF_NEWS [Bob_Brzezinski] 2005-10-28
224.0.23.38 AF_NA_CHI [Bob_Brzezinski] 2005-10-28
224.0.23.39 AF_OPRA_NBBO_CHI [Bob_Brzezinski] 2005-10-28
224.0.23.40 AF_OPRA_FULL_CHI [Bob_Brzezinski] 2005-10-28
224.0.23.41 AF_NEWS_CHI [Bob_Brzezinski] 2005-10-28
224.0.23.42 Control for IP Video [Nadine_Guillaume] 2005-02-01
224.0.23.43 acp-discovery [Andy_Belk] 2005-02-01
224.0.23.44 acp-management [Andy_Belk] 2005-02-01
224.0.23.45 acp-data [Andy_Belk] 2005-02-01
224.0.23.46 dof-multicast [Bryant_Eastham] 2006-06-16 2015-04-23
224.0.23.47 AF_DOB_CHI [Bob_Brzezinski] 2005-10-28
224.0.23.48 AF_OPRA_FULL2_CHI [Bob_Brzezinski] 2005-10-28
224.0.23.49 AF_DOB [Bob_Brzezinski] 2005-10-28
224.0.23.50 AF_OPRA_FULL2 [Bob_Brzezinski] 2005-10-28
224.0.23.51 Fairview [Jim_Lyle] 2006-08-07
224.0.23.52 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2006-08-11
224.0.23.53 MCP [Tim_DeBaillie] 2006-11-30
224.0.23.54 ServDiscovery [Paul_Langille] 2007-01-17
224.0.23.55 noaaport1 [Antonio_Querubin] 2008-02-04
224.0.23.56 noaaport2 [Antonio_Querubin] 2008-02-04
224.0.23.57 noaaport3 [Antonio_Querubin] 2008-02-04
224.0.23.58 noaaport4 [Antonio_Querubin] 2008-02-04
224.0.23.59 DigacIP7 [Jonathan_Niedfeldt] 2008-02-22
224.0.23.60 AtscSvcSig [Jerry_Whitaker] 2008-12-19
224.0.23.61 SafetyNET p (potentially IGMPv1) [Pilz] 2009-03-13
224.0.23.62 BluemoonGamesMC [Christopher_Mettin] 2009-05-12
224.0.23.63 iADT Discovery [Paul_Suhler] 2009-05-12
224.0.23.64-224.0.23.80 Moneyline [Guido_Petronio] 2004-01-01
224.0.23.81-224.0.23.127 Reserved (Moneyline)
224.0.23.128-224.0.23.157 PHLX [Michael_Rosenberg] [Nasdaq_Inc] 2004-01-01
224.0.23.158 VSCP [Charles_Tewiah] 2005-09-01
224.0.23.159 LXI-EVENT [Nick_Barendt] 2005-11-04
224.0.23.160 solera_lmca [Mark_Armstrong] 2006-02-09
224.0.23.161 VBooster [Alexander_Pevzner] 2006-03-17
224.0.23.162 cajo discovery [John_Catherino] 2006-03-17
224.0.23.163 INTELLIDEN [Jeff_Schenk] 2006-03-31
224.0.23.164 IceEDCP [Oliver_Lewis] 2006-07-11
224.0.23.165 omasg [Mark_Lipford] 2006-07-11
224.0.23.166 MEDIASTREAM [Maurice_Robberson] 2006-08-15
224.0.23.167 Systech Mcast [Dan_Jakubiec] 2006-08-21
224.0.23.168 tricon-system-management [John_Gabler] 2007-07-06
224.0.23.169 MNET discovery [Andy_Crick] 2008-01-14
224.0.23.170 CCNx (not for global routing) [Simon_Barber] 2009-09-24
224.0.23.171 LLAFP [Michael_Lyle] 2009-11-11
224.0.23.172 UFMP [Shachar_Dor] [Mellanox] 2010-02-04
224.0.23.173 PHILIPS-HEALTH [Mike_King] [Philips_Healthcare] 2010-02-26
224.0.23.174 PHILIPS-HEALTH [Mike_King] [Philips_Healthcare] 2010-02-26
224.0.23.175 QDP [Kevin_Gross] 2010-03-12
224.0.23.176 CalAmp WCP [Pierre_Oliver] 2011-06-06
224.0.23.177 AES discovery [Kevin_Gross_2] 2012-08-28
224.0.23.178 JDP Java Discovery Protocol [Florian_Weimer] 2013-02-08
224.0.23.179 PixelPusher [Jasmine_Strong] 2014-06-04
224.0.23.180 network metronome [George_Neville-Neil] 2014-12-17
224.0.23.181 polaris-video-transport [Geoff_Golder] 2016-04-19
224.0.23.182 AMI-DISCOVERY [Dmitri_Kisten] [Alcorn_McBride_Inc.] 2025-12-01
224.0.23.183-224.0.23.191 Unassigned
224.0.23.192-224.0.23.255 PINKOTC [Sergey_Shulgin] 2008-08-12
224.0.24.0-224.0.24.127 AGSC UK VVs [Andrew_Rowley] 2006-06-09
224.0.24.128-224.0.24.255 EM-MULTI [Soren_Martin_Sorensen] 2006-08-07
224.0.25.0-224.0.28.255 CME Market Data [Anthony_Lopresti] [CME_Group] 2007-03-22
224.0.29.0-224.0.30.255 Deutsche Boerse [Jan_Drwal] 2007-03-22
224.0.31.0-224.0.34.255 CME Market Data [Anthony_Lopresti] [CME_Group] 2007-07-17
224.0.35.0-224.0.35.255 M2S [Itamar_Gilad] 2007-08-31
224.0.36.0-224.0.36.255 DigiPlay [Robert_Taylor] 2016-09-29
224.0.37.0-224.0.38.255 London Metal Exchange [LME_Networks] [London_Metal_Exchange] 2017-03-24
224.0.39.0-224.0.40.255 CDAS [Oyvind_H_Olsen] 2007-09-12
224.0.41.0-224.0.41.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2007-11-28 2011-02-15
224.0.42.0-224.0.45.255 Media Systems [Media_Systems_OOO] [Media_Systems_OOO] 2008-01-15
224.0.46.0-224.0.50.255 Deutsche Boerse [Jan_Drwal] 2008-01-25
224.0.51.0-224.0.51.255 ALCOM-IPTV [TV_System_Administrators] [Ålands_Telekommunikation_Ab] 2008-04-09 2018-02-20
224.0.52.0-224.0.53.255 Euronext [Euronext_Admin] [Euronext_Admin] 2008-07-23 2014-11-24
224.0.54.0-224.0.57.255 Telia Norway mcast [Henrik_Lans] [Telia-Norway-Get-NOC] 2008-08-20
224.0.58.0-224.0.61.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2008-08-27
224.0.62.0-224.0.62.255 BATS [Cboe_POC] [Cboe_Bats_LLC] 2008-12-24
224.0.63.0-224.0.63.255 BATS Trading [Cboe_POC] [Cboe_Bats_LLC] 2009-03-13
224.0.64.0-224.0.67.255 Euronext [Euronext_Admin] [Euronext_Admin] 2009-03-13 2014-11-24
224.0.68.0-224.0.69.255 Nasdaq Inc. [Michael_Rosenberg] [Nasdaq_Inc] 2009-05-12
224.0.70.0-224.0.71.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2009-06-16 2011-03-01
224.0.72.0-224.0.72.255 TMX [TMX_Network_Engineering] [TMX] 2009-08-28
224.0.73.0-224.0.74.255 Direct Edge [Cboe_POC] [Cboe_Bats_LLC] 2009-08-28
224.0.75.0-224.0.75.255 Nasdaq Inc. [Michael_Rosenberg] [Nasdaq_Inc] 2010-01-22
224.0.76.0-224.0.76.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2010-02-26 2011-03-01
224.0.77.0-224.0.77.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2010-02-26
224.0.78.0-224.0.78.255 ALCOM-IPTV [TV_System_Administrators] [Ålands_Telekommunikation_Ab] 2010-03-12 2018-02-20
224.0.79.0-224.0.81.255 Nasdaq Inc. [Michael_Rosenberg] [Nasdaq_Inc] 2010-08-24
224.0.82.0-224.0.85.255 BATS Trading [Cboe_POC] [Cboe_Bats_LLC] 2011-01-31
224.0.86.0-224.0.101.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2011-02-10
224.0.102.0-224.0.102.127 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2011-04-13
224.0.102.128-224.0.102.255 MVS-IPTV-2 [Midwest_Video_Solutions] [Midwest_Video_Solutions] 2014-06-12
224.0.103.0-224.0.104.255 MVS-IPTV [Midwest_Video_Solutions][Adam_DeMinter] [Midwest_Video_Solutions] 2011-04-20
224.0.105.0-224.0.105.127 MIAX Multicast [Gamini_Karunaratne] [MIAX] 2011-06-06
224.0.105.128-224.0.105.255 MVS-IPTV3 [Justin_Beaman] [Midwest_Video_Solutions] 2017-12-04
224.0.106.0-224.0.106.255 TMX [TMX_Network_Engineering] [TMX] 2011-06-16
224.0.107.0-224.0.108.255 TSX Inc. [TMX_Network_Engineering] [TMX] 2011-07-13
224.0.109.0-224.0.110.255 TSX Inc. [TMX_Network_Engineering] [TMX] 2011-10-25
224.0.111.0-224.0.111.255 VoleraDataFeed [Cboe_POC] [Cboe_Bats_LLC] 2011-10-25
224.0.112.0-224.0.112.255 JHB-STOCK-EXCH [Clem_Verwey] 2011-12-07
224.0.113.0-224.0.114.255 Deutsche Boerse [Jan_Drwal] 2011-12-19
224.0.115.0-224.0.115.255 TMX [TMX_Network_Engineering] [TMX] 2012-06-12
224.0.116.0-224.0.116.255 Intercontinental Exchange, Inc [RIR_Admin] [Intercontinental_Exchange_Inc.] 2012-06-19
224.0.117.0-224.0.119.255 Nasdaq Inc. [Michael_Rosenberg] [Nasdaq_Inc] 2012-07-12
224.0.120.0-224.0.120.255 czechbone iptv [Karel_Vesely] [Nej.cz] 2013-01-15
224.0.121.0-224.0.121.255 AQUIS-EXCHANGE [Paul_Roberts] [Aquis_Exchange_PLC] 2013-05-13
224.0.122.0-224.0.123.255 DNS:NET TV [Marlon_Berlin] 2013-05-25
224.0.124.0-224.0.124.255 Boston Options Exchange [David_Wilson][Michael_Caravetta] 2013-05-30
224.0.125.0-224.0.125.255 Hanweck Associates [Cboe_POC] [Cboe_Bats_LLC] 2013-09-05
224.0.126.0-224.0.129.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2013-10-31
224.0.130.0-224.0.131.255 BATS Trading [Cboe_POC] [Cboe_Bats_LLC] 2014-03-05
224.0.132.0-224.0.135.255 Net By Net Holding IPTV [Lev_V._Cherednikov] 2014-04-12
224.0.136.0-224.0.139.255 Aequitas Innovations Inc. [Cboe_POC] [Cboe_Bats_LLC] 2014-05-16
224.0.140.0-224.0.140.255 Instinet [Instinet] [Instinet] 2014-09-04
224.0.141.0-224.0.141.255 MIAX-2 [Gamini_Karunaratne] [MIAX] 2015-06-30
224.0.142.0-224.0.142.255 MIAX M3 [Gamini_Karunaratne] [MIAX] 2017-05-19
224.0.143.0-224.0.143.255 A2X-EXCHANGE [Neal_Lawrence] 2017-06-02
224.0.144.0-224.0.151.255 VZ-Multicast-Public [Stephen_Ray_Middleton] 2015-03-23
224.0.152.0-224.0.152.255 cse-md [David_Brett] 2016-04-19
224.0.153.0-224.0.156.255 Telia Norway mcast [Henrik_Lans] [Telia-Norway-Get-NOC] 2016-05-24
224.0.157.0-224.0.157.255 London Metal Exchange [LME_Networks] [London_Metal_Exchange] 2017-01-23
224.0.158.0-224.0.159.255 TriAct Canada Marketplace LP [Hatice_Unal] 2017-01-23
224.0.160.0-224.0.165.255 Deutsche Boerse [Bernd_Uphoff] 2016-07-07
224.0.166.0-224.0.167.255 Virgin Connect IPTV [Vladimir_Shishkov] 2017-02-17
224.0.168.0-224.0.169.255 Deutsche Boerse [Bernd_Uphoff] 2017-12-05
224.0.170.0-224.0.170.255 MVS-IPTV4 [Justin_Beaman] [Midwest_Video_Solutions] 2018-06-07
224.0.171.0-224.0.171.255 COINBASE-MARKETS [Gavin_McKee] [Coinbase] 2019-01-25
224.0.172.0-224.0.175.255 Deutsche Boerse [Bernd_Uphoff] 2018-06-19
224.0.176.0-224.0.179.255 MIAX-EX-3-4-5 [Gamini_Karunaratne] [MIAX] 2018-07-31
224.0.180.0-224.0.181.255 CBOE Europe [Cboe_POC] [Cboe_Bats_LLC] 2019-02-13
224.0.182.0-224.0.183.255 ALCOM-TV [TV_System_Administrators] [Ålands_Telekommunikation_Ab] 2019-02-28
224.0.184.0-224.0.184.255 AQUIS-EXCHANGE [Paul_Roberts] [Aquis_Exchange_PLC] 2019-08-28
224.0.185.0-224.0.185.255 Hanweck Associates [Cboe_POC] [Cboe_Bats_LLC] 2019-09-12
224.0.186.0-224.0.186.255 BOX Options Market [Alexandre_Gomes] [BOX_TECHNOLOGY_CANADA_INC.] 2019-10-02
224.0.187.0-224.0.188.255 MVS-IPTV5 [Justin_Beaman] [Midwest_Video_Solutions] 2019-11-13
224.0.189.0-224.0.189.255 Ido Rosen [Ido_Rosen] [Ido_Rosen] 2021-03-23
224.0.190.0-224.0.191.255 RTP Media [Vadim_B._Kantor] [RTP_Media] 2020-10-01
224.0.192.0-224.0.207.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2021-04-01
224.0.208.0-224.0.213.255 Euronext [Euronext_Admin] [Euronext_Admin] 2021-04-13
224.0.214.0-224.0.214.255 OSK B2B mVPN distribution [Attila_Miklóš] [IPadmin_-_Orange_Slovensko_a.s.] 2021-06-11
224.0.215.0-224.0.215.255 Tradeweb CLOB [Ruben_Hernandez] [Tradeweb_Markets_Inc] 2022-01-06
224.0.216.0-224.0.219.255 RTP Media [Vadim_B._Kantor] [RTP_Media] 2021-07-30
224.0.220.0-224.0.223.255 Japan Exchange Group [Japan_Exchange_Group] [Japan_Exchange_Group] 2021-09-07
224.0.224.0-224.0.224.255 AQUIS-EXCHANGE [Paul_Roberts] [Aquis_Exchange_PLC] 2021-12-21
224.0.225.0-224.0.225.255 Kalejdo TV [Kalejdo_TV] [Thomas_Sörlin] 2022-08-26
224.0.226.0-224.0.227.255 MVS-IPTV6 [Justin_Beaman] [Midwest_Video_Solutions] 2022-06-09
224.0.228.0-224.0.231.255 London Metal Exchange [LME_Networks] [London_Metal_Exchange] 2022-02-01
224.0.232.0-224.0.239.255 Lucera Financial Infra [Kevin_McNicholas] [Lucera_Financial_Infrastructures] 2022-02-17
224.0.240.0-224.0.243.255 London Metal Exchange [LME_Networks] [London_Metal_Exchange] 2022-05-26
224.0.244.0-224.0.244.255 Clearpool AMS [Charles_Gomes] [Clearpool] 2023-05-19
224.0.245.0-224.0.245.255 OneChronos [Kelly_Littlepage] [OCX_Group_Inc] 2023-08-29
224.0.246.0-224.0.246.255 MEMX Memoir [Javier_Torres] [Members_Exchange-MEMX] 2024-01-22
224.0.247.0-224.0.247.255 BOX Options Market [Alexandre_Gomes] [BOX_TECHNOLOGY_CANADA_INC.] 2024-02-27
224.0.248.0-224.0.249.255 MEMX Memoir [Muhammad_Mazhar_Cheema] [Members_Exchange-MEMX] 2025-12-03
224.0.250.0-224.0.251.255 KPN Broadcast Services [Ad_C_Spelt][KPN_IP_Office] 2009-09-01
224.0.252.0-224.0.252.255 KPN Broadcast Services [Ad_C_Spelt][KPN_IP_Office] 2005-08-01
224.0.253.0-224.0.253.255 KPN Broadcast Services [Ad_C_Spelt][KPN_IP_Office] 2005-08-01
224.0.254.0-224.0.254.255 Intelsat IPTV [Karl_Elad] 2006-03-31 2011-02-22
224.0.255.0-224.0.255.255 Intelsat IPTV [Karl_Elad] 2006-03-31 2011-02-22

RESERVED (224.1.0.0-224.1.255.255 (224.1/16))

Reference
[RFC 5771]
Note
No new assignments are being made in this range for the time being.
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
224.1.0.0-224.1.0.37 Reserved [RFC 5771]
224.1.0.38 dantz [Richard_Zulch] 2004-05-01
224.1.0.39-224.1.1.255 Reserved [RFC 5771]
224.1.2.0-224.1.2.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2006-02-17
224.1.3.0-224.1.4.255 NOB Cross media facilities [Technicolor_NL_NOC] 2006-05-22
224.1.5.0-224.1.255.255 Reserved [RFC 5771]

SDP/SAP Block (224.2.0.0-224.2.255.255 (224.2/16))

Reference
[RFC 5771]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
224.2.0.0-224.2.127.253 Multimedia Conference Calls [Steve_Casner]
224.2.127.254 SAPv1 Announcements [Steve_Casner]
224.2.127.255 SAPv0 Announcements (deprecated) [Steve_Casner]
224.2.128.0-224.2.255.255 SAP Dynamic Assignments [Steve_Casner]

AD-HOC Block II (224.3.0.0-224.4.255.255 (224.3/16, 224.4/16))

Registration Procedure(s)
Expert Review, IESG Approval, or Standards Action
Reference
[RFC 5771]
Request an Assignment
[https://www.iana.org/protocols/apply]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
224.3.0.0-224.3.0.63 Nasdaqmdfeeds (re-new/March 2003) [Michael_Rosenberg] [Nasdaq_Inc] 1999-03-01
224.3.0.64-224.3.255.255 Unassigned
224.4.0.0-224.4.0.255 London Stock Exchange Group [Andrew_Padley] [London_Stock_Exchange_Group] 2006-03-31
224.4.1.0-224.4.1.255 London Stock Exchange Group [Andrew_Padley] [London_Stock_Exchange_Group] 2008-02-25
224.4.2.0-224.4.2.255 London Stock Exchange Group [Andrew_Padley] [London_Stock_Exchange_Group] 2008-02-29
224.4.3.0-224.4.4.255 London Stock Exchange Group [Andrew_Padley] [London_Stock_Exchange_Group] 2008-12-24
224.4.5.0-224.4.6.255 London Stock Exchange Group [Andrew_Padley] [London_Stock_Exchange_Group] 2009-05-12
224.4.7.0-224.4.7.255 CBOE Holdings [Cboe_POC] [Cboe_Bats_LLC] 2012-04-10
224.4.8.0-224.4.9.255 Nasdaq Inc. [Michael_Rosenberg] [Nasdaq_Inc] 2012-04-11
224.4.10.0-224.4.13.255 London Stock Exchange Group [Andrew_Padley] [London_Stock_Exchange_Group] 2012-04-11
224.4.14.0-224.4.17.255 London Stock Exchange Group [Andrew_Padley] [London_Stock_Exchange_Group] 2018-01-04
224.4.18.0-224.4.21.255 London Stock Exchange Group [Andrew_Padley] [London_Stock_Exchange_Group] 2021-02-04
224.4.22.0-224.4.23.255 London Stock Exchange Group [Andrew_Padley] [London_Stock_Exchange_Group] 2021-09-21
224.4.24.0-224.4.31.255 Fenics Market Data [Steve_Loizou] [Cantor_Fitzgerald] 2023-01-18
224.4.32.0-224.4.33.255 Global Futures & Options Ltd [David_Beattie] [Global_Futures_and_Options_Limited] 2023-03-15
224.4.34.0-224.4.39.255 MIAX-3 [Gamini_Karunaratne] [MIAX] 2023-05-24
224.4.40.0-224.4.43.255 Japan Exchange Group [Japan_Exchange_Group_-_Osaka_Exchange_Inc.] [Japan_Exchange_Group_-_Osaka_Exchange_Inc.] 2024-06-25
224.4.44.0-224.4.47.255 CME Group [Anthony_Lopresti] [CME_Group] 2024-08-02
224.4.48.0-224.4.63.255 Intercontinental Exchange, Inc. [RIR_Admin] [Intercontinental_Exchange_Inc.] 2023-04-10
224.4.64.0-224.4.71.255 CME Group [Anthony_Lopresti] [CME_Group] 2024-08-06
224.4.72.0-224.4.79.255 FMX Market Data [Steve_Loizou] [BCG_Group] 2025-02-25
224.4.80.0-224.4.84.255 CBOE Holdings [Cboe_POC] [Cboe_Bats_LLC] 2025-04-01
224.4.85.0-224.4.85.255 A5X - Market Data Feed [Cleverson_Arashiro] [A5X] 2026-01-27
224.4.86.0-224.4.86.255 EuroCTP BV [Pico_Network_Engineering] [Pico] 2026-03-10
224.4.87.0-224.4.87.255 Unassigned
224.4.88.0-224.4.95.255 CME Group [Anthony_Lopresti] [CME_Group] 2025-12-03
224.4.96.0-224.4.103.255 LUME_Markets [Kevin_McNicholas] [Lucera_Financial_Infrastructures] 2026-06-26
224.4.104.0-224.4.255.255 Unassigned

RESERVED (224.5.0.0-224.251.255.255 (251 /16s))

Reference
[RFC 5771]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
224.5.0.0-224.251.255.255 Reserved [RFC 5771]

DIS Transient Groups 224.252.0.0-224.255.255.255 (224.252/14))

Reference
[RFC 2365]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
224.252.0.0-224.255.255.255 DIS Transient Groups [IANA][RFC 2365]

RESERVED (225.0.0.0-231.255.255.255 (7 /8s))

Reference
[RFC 5771]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
225.0.0.0-231.255.255.255 Reserved [RFC 5771]

Source-Specific Multicast Block (232.0.0.0-232.255.255.255 (232/8))

Reference
[RFC 5771]
Note
Addresses within the 232.0.1.0-232.255.255.255 are dynamically
allocated by hosts when needed [RFC 4607]
Available Formats

CSV
Relative Description References Change Controller Date Registered Last Reviewed
232.0.0.0 Reserved [RFC 4607]
232.0.0.1-232.0.0.255 Reserved for IANA allocation [RFC 4607]
232.0.1.0-232.255.255.255 Reserved for local host allocation [RFC 4607]

GLOP Block

Reference
[RFC 3180]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
233.0.0.0-233.251.255.255 GLOP Block [RFC 3180]

AD-HOC Block III (233.252.0.0-233.255.255.255 (233.252/14))

Registration Procedure(s)
Expert Review, IESG Approval, or Standards Action
Reference
[RFC 5771]
Request an Assignment
[https://www.iana.org/protocols/apply]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
233.252.0.0-233.252.0.255 MCAST-TEST-NET [IANA][RFC 5771][RFC 6676] 2010-01-20 2010-01-20
233.252.1.0-233.252.1.255 Pico [Pico_Sales] [Pico] 2010-08-12
233.252.2.0-233.252.7.255 Tradition [Tradition_Network_Operations_and_Command_Center] 2010-08-12
233.252.8.0-233.252.11.255 BVMF_MKT_DATA [Roberto_Costa_Simoes] 2010-08-12
233.252.12.0-233.252.13.255 blizznet-tv-services [Paul_Wallner] 2010-09-14
233.252.14.0-233.252.17.255 BVMF_MKT_DATA_2 [Guilherme_Longanezi] 2016-09-27
233.252.18.0-233.252.18.255 Pico [Pico_Sales] [Pico] 2021-12-17
233.252.19.0-233.255.255.255 Unassigned

Unicast-Prefix-based IPv4 Multicast Addresses

Reference
[RFC 6034]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
234.0.0.0-234.255.255.255 Unicast-Prefix-based IPv4 Multicast Addresses [RFC 6034] 2010-08-11

Scoped Multicast Ranges

Reference
[RFC 5771]
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
235.0.0.0-238.255.255.255 Reserved [RFC 5771]
239.0.0.0-239.255.255.255 Organization-Local Scope [David_Meyer][RFC 2365] 1997-01-01

Relative Addresses used with Scoped Multicast Addresses

Reference
[RFC 5771]
Note
(*)  It is only appropriate to use these values in explicitly-
configured experiments; they MUST NOT be shipped as defaults in
implementations.  See [RFC 3692] for details.

These addresses are listed in the Domain Name Service under MCAST.NET
and 224.IN-ADDR.ARPA.

Note that when used on an Ethernet or IEEE 802 network, the 23
low-order bits of the IP Multicast address are placed in the low-order
23 bits of the Ethernet or IEEE 802 net multicast address
1.0.94.0.0.0.  See the section on "IANA ETHERNET ADDRESS BLOCK".
Available Formats

CSV
Address(es) Description References Change Controller Date Registered Last Reviewed
0 SAP Session Announcement Protocol [Mark_Handley] 1998-12-01
1 MADCAP Protocol [RFC 2730]
2 SLPv2 Discovery [Erik_Guttman] 2001-12-01
3 MZAP [Dave_Thaler] 2000-06-01
4 Multicast Discovery of DNS Services [Bill_Manning] 1999-08-01
5 SSDP [UPnP_Forum] 2006-06-27
6 DHCP v4 [Eric_Hall] 1999-10-01
7 AAP [Stephen_Hanna] 2000-07-01
8 MBUS [RFC 3259]
9 UPnP [UPnP_Forum] 2006-06-27
10 MCAST-TEST-NET-2 [RFC 6676]
11-252 Unassigned
253 Reserved
254 RFC3692-style Experiment (*) [RFC 4727]
255 Unassigned

Contact Information

ID Name Organization Contact URI Last Updated
[_3GPP] 3GPP https://www.3gpp.org
[A5X] A5X mailto:platform-engineering&a5x.com.br 2026-01-27
Ad C. Spelt mailto:a.c.spelt&kpn.com 2009-09-01
[Adam_DeMinter] Adam DeMinter mailto:adam.deminter&mwt.net 2011-04-20
[Adam_Yellen] Adam Yellen mailto:adam&videofurnace.com 2009-08-12
[Akihiro_Nishida] Akihiro Nishida mailto:nishida&src.ricoh.co.jp 2003-02-01
[Alan_Novick] Alan Novick mailto:anovick&tdc.com 1998-08-01
[Alan_Robertson] Alan Robertson mailto:alanr&unix.sh 2012-04-17
[Ålands_Telekommunikation_Ab] Ålands Telekommunikation Ab mailto:tv-noc&alcom.ax 2019-02-28
[Alcorn_McBride_Inc.] Alcorn McBride, Inc. mailto:eng&alcorn.com 2025-12-01
[Alex_Lee] Alex Lee mailto:alex_mrlee&gemtek.com.tw 2002-10-01
[Alexander_Pevzner] Alexander Pevzner mailto:pzz&pzz.msk.ru 2006-03-17
[Alexandre_Gomes] Alexandre Gomes mailto:agomes&boxtechnology.com 2024-02-27
[Anders_Andersen] Anders Andersen mailto:njDQE2023&163.com 2026-08-20
[Andrew_Cherenson] Andrew Cherenson mailto:arc&sgi.com
[Andrew_Padley] Andrew Padley London Stock Exchange Group mailto:andrew.padley&lseg.com 2025-09-08
[Andrew_Rowley] Andrew Rowley mailto:Andrew.Rowley&manchester.ac.uk 2006-06-09
[Andy_Belk] Andy Belk mailto:register1&azulsystems.com 2005-02-01
[Andy_Crick] Andy Crick mailto:acrick&haascnc.com 2008-01-14
[Anthony_Daga] Anthony Daga mailto:anthony&mksrc.com 1999-06-01
[Anthony_Lopresti] Anthony Lopresti CME Group mailto:anthony.lopresti&cmegroup.com 2025-12-03
[Antonio_Querubin] Antonio Querubin mailto:tony&lava.net 2008-02-04
[Applykane] Applykane Technologies Private Limited mailto:applykane&gmail.com 2017-05-19
[Aquis_Exchange_PLC] Aquis Exchange PLC mailto:networks&aquis.eu 2021-12-21
[Architecture_Team] Architecture Team mailto:tech.arch&quantifytechnology.com 2018-01-31
[Arnoud_Zwemmer] Arnoud Zwemmer mailto:arnoud&nwn.nl 1996-11-01
[Asad_Gilani] Asad Gilani mailto:agilani&nymex.com 1997-07-01
[Asia_Digital_Exchange] Asia Digital Exchange mailto:it_infra&asianext.com 2024-04-05
[BCG_Group] BCG Group mailto:NetworkEngineering&cantor.com 2025-02-25
[Attila_Miklóš] Attila Miklóš mailto:attila.miklos&orange.com 2021-06-11
[Bernd_Uphoff] Bernd Uphoff mailto:bernd.uphoff&deutsche-boerse.com 2018-06-19
[Bert_van_Willigen] Bert van Willigen mailto:bert.vanwilligen&philips.com 2004-01-01
[Beverly_Schwartz] Beverly Schwartz mailto:bschwart&bbn.com 1998-06-01
[Bill_Manning] Bill Manning mailto:bmanning&isi.edu 1999-08-01
[Bill_Schilit] Bill Schilit mailto:schilit&parc.xerox.com
[Bill_Simpson] Bill Simpson mailto:bill.simpson&um.cc.umich.edu 1994-11-01
[Bill_Woodcock] Bill Woodcock mailto:woody&zocalo.net 1998-11-01
[Bob_Braden] Bob Braden mailto:braden&isi.edu 1996-04-01
[Bob_Brzezinski] Bob Brzezinski mailto:bob.brzezinski&activfinancial.com 2005-10-28
[Bob_Gaddie] Bob Gaddie mailto:bobg&dtn.com 1998-08-01
[Bob_Meier] Bob Meier mailto:meierb&norand.com 1997-12-01
[Bob_Scheifler] Bob Scheifler mailto:Bob.Scheifler&sun.com 1998-08-01
[Bob_Sledge] Bob Sledge mailto:bob&pqsystems.com 1998-12-01
[Bodo_Rueskamp] Bodo Rueskamp mailto:br&itchigo.com 2000-03-01
[BOX_TECHNOLOGY_CANADA_INC.] BOX TECHNOLOGY CANADA INC. 2024-02-27
[Brendan_Eic] Brendan Eic mailto:brendan&illyria.wpd.sgi.com
[Brian_Kean] Brian Kean mailto:bkean&dca.com 1995-08-01
[Brian_Kerkan] Brian Kerkan mailto:brian&satcomsystems.com 2000-05-01
[Brian_Martinicky] Brian Martinicky mailto:Brian_Martinicky&automationintelligence.com 2000-03-01
[Brian_Trudeau] Brian Trudeau mailto:btrudeau&onechicago.com 2014-09-19
[Bruce_Factor] Bruce Factor mailto:ahi!bigapple!bruce&uunet.uu.net
[Bryan_Costales] Bryan Costales mailto:bcx&infobeat.com 1997-09-01
[Bryant_Eastham] Bryant Eastham mailto:protocol&opendof.org 2015-04-23
[BSE] Beirut Stock Exchange mailto:itd&bse.com.lb 2019-01-17
[Caleb_Bell] Caleb Bell mailto:cbell&rxnetworks.com 2012-11-19
[Carl-Johan_Sjöberg] Carl-Johan Sjöberg mailto:cjs&bitsend.se 2012-04-25
[Carl_Malamud] Carl Malamud mailto:carl&media.org 2014-01-03
[Cantor_Fitzgerald] Cantor Fitzgerald mailto:networkengineering&cantor.com 2023-01-18
[Cboe_Bats_LLC] Cboe Bats, LLC mailto:poc&cboe.com 2025-04-01
[Cboe_POC] Cboe POC Cboe Bats, LLC mailto:poc&cboe.com 2025-04-01
[Charles_Gomes] Charles Gomes mailto:noc&clearpoolgroup.com 2023-06-05
[Charles_Lo] Charles Lo mailto:clo&qti.qualcomm.com 2022-11-02
[Charles_Tewiah] Charles Tewiah mailto:charles.tewiah&westlb-systems.co.uk 2005-09-01
[Chas_Honton] Chas Honton mailto:chas&secant.com 1997-12-01
[Choon_Lee] Choon Lee mailto:cwl&nsd.3com.com 1996-04-01
[Chris_Adams] Chris Adams mailto:jc.adams&reuters.com 2000-07-01
[Christopher_Mettin] Christopher Mettin mailto:cmettin&gqbc-online.com 2009-05-12
[Chuck_McManis] Chuck McManis mailto:cmcmanis&sun.com
[CIX_Trading] CIX Trading mailto:operations&thecix.ca 2025-09-18
[Clearpool] Clearpool mailto:noc&clearpoolgroup.com 2023-06-05
[Clem_Verwey] Clem Verwey mailto:clemv&jse.co.za 2011-12-07
[Cleverson_Arashiro] Cleverson Arashiro A5X mailto:shiro&a5x.com.br 2026-01-27
[CME_Group] CME Group mailto:networkengineering&cmegroup.com 2024-08-06
[Colin_Caughie] Colin Caughie mailto:cfc&indigo-avs.com 2000-05-01
[Coinbase] Coinbase mailto:markets-infra&coinbase.com 2019-01-28
[COMTECH_Kft.] COMTECH Kft. mailto:dev&comtech.co.hu 2016-10-20
[Craig_Dowell] Craig Dowell mailto:cdowell&quicinc.com 2011-11-18
[Dan_Jackson] Dan Jackson mailto:jdan&us.ibm.com 1997-09-01
[Dan_Jakubiec] Dan Jakubiec mailto:dan.jakubiec&systech.com 2006-09-21
[Daniel_Dissett] Daniel Dissett mailto:ddissett&peerlogic.com 1998-12-01
[Daniel_Steinber] Daniel Steinber mailto:Daniel.Steinberg&eng.sun.com
[Darcy_Brockbank] Darcy Brockbank mailto:darcy&hasc.com 1997-12-01
[Darrell_Sveistrup] Darrell Sveistrup mailto:darrells&truesolutions.net 1999-06-01
[Darren_Molloy] Darren Molloy CIX Trading mailto:darren&thecix.ca 2025-09-18
[Dave_Cheriton] Dave Cheriton mailto:cheriton&dsg.stanford.edu
[Dave_Glanzer] Dave Glanzer mailto:dave.glanzer&fieldbus.org 2003-03-01
[Dave_Thaler] Dave Thaler mailto:dthaler&microsoft.com 2000-06-01
[David_Beattie] David Beattie Global Futures and Options Limited mailto:david.beattie&gfo-x.com 2023-03-15
[David_Brett] David Brett mailto:david.brett&thecse.com 2016-04-19
[David_Meyer] David Meyer mailto:meyer&ns.uoregon.edu 1997-01-01
[David_Mills] David Mills mailto:mills&udel.edu
[David_Poole] David Poole mailto:davep&extendsys.com 1997-04-01
[David_Rubin] David Rubin mailto:drubin&ncc.net 1996-08-01
[David_Wilson] David Wilson mailto:dwilson&m-x.ca 2013-05-30
[Dean_Blackketter] Dean Blackketter mailto:dean&corp.webtv.net 1998-11-01
[Dino_Farinacci] Dino Farinacci mailto:dino&procket.com 1996-03-01
[Dirk_Koopman] Dirk Koopman mailto:djk&tobit.co.uk 2000-07-01
[Dmitri_Kisten] Dmitri Kisten Alcorn McBride, Inc. mailto:dmitri&alcorn.com 2025-12-01
[Doug_Dillon] Doug Dillon mailto:dillon&hns.com 1998-08-01
[Douglas_Marquardt] Douglas Marquardt mailto:dmarquar&woz.org 1997-02-01
[Duane_Wessels] Duane Wessels mailto:wessels&nlanr.net 1997-02-01
[Ed_Moran] Ed Moran mailto:admin&cruzjazz.com 1997-10-01
[Ed_Purkiss] Ed Purkiss mailto:epurkiss&wdmacodi.com 1998-09-01
[Eric_Hall] Eric Hall mailto:ehall&ntrg.com 1999-10-01
[Erick_MacDonald_Filzek] Erick MacDonald Filzek mailto:filzek&wisehome.io 2023-08-09
[Erik_Guttman] Erik Guttman mailto:Erik.Guttman&sun.com 2001-12-01
[Ernst_EDER] Ernst EDER mailto:tech&lonmark.org 2018-11-19
[Euronext_Admin] Euronext Admin mailto:iana-admin&euronext.com 2014-11-24
[Evan_Caves] Evan Caves mailto:evan&acc.com 1998-06-01
[Florian_Weimer] Florian Weimer mailto:fweimer&redhat.com 2013-02-08
[Fred_Baker] Fred Baker mailto:fred&cisco.com 1997-06-01
[Gajendra_Shukla] Gajendra Shukla mailto:gshukla&proxim.com 2002-02-01
[Gamini_Karunaratne] Gamini Karunaratne mailto:gkarunaratne&miami-holdings.com 2023-05-24
[Gary_S_Malkin] Gary S. Malkin mailto:GMALKIN&xylogics.com
[Gary_Scott_Malkin] Gary Scott Malkin mailto:gmalkin&baynetworks.com 1998-02-01
[Gavin_McKee] Gavin McKee mailto:gav.mckee&coinbase.com 2019-01-25
[Gene_Marsh] Gene Marsh mailto:MarshM&diebold.com 1998-11-01
[Geoff_Golder] Geoff Golder mailto:geoffgolder&gmail.com 2016-04-19
[Geoff_Mendal] Geoff Mendal mailto:mendal&talarian.com 1999-01-01
[George_Neville-Neil] George Neville-Neil mailto:gnn&neville-neil.com 2014-12-17
[Giovanni_Marzot] Giovanni Marzot mailto:gmarzot&ramp.com 2019-03-13
[Giovanni_Marzot_2] Giovanni Marzot mailto:gmarzot&vivoh.com 2023-10-13
[Global_Futures_and_Options_Limited] Global Futures and Options Limited mailto:david.beattie&gfo-x.com 2023-03-15
[Grant_Taylor] Grant Taylor mailto:grantwtt&gmail.com 2016-10-04
[Guido_Petronio] Guido Petronio mailto:guido.petronio&moneyline.com 2004-01-01
[Guilherme_Longanezi] Guilherme Longanezi mailto:glonganezi&bvmf.com.br 2016-09-27
[Hatice_Unal] Hatice Unal mailto:CAN-Tech-Network&itg.com 2019-01-25
[Heiko_Rupp] Heiko Rupp mailto:hwr&xlink.net 1997-01-01
[Henri_Moelard] Henri Moelard mailto:HMOELARD&wcnd.nl.lucent.com 1998-03
[Henrik_Lans] Henrik Lans mailto:henrik.lans&telia.no 2019-09-27
[Hiroshi_Okubo] Hiroshi Okubo mailto:okubo.hiroshi&canon.co.jp 2014-08-01
[Howard_Gordon] Howard Gordon mailto:hgordon&xingtech.com
[IANA] IANA mailto:iana&iana.org
[Ian_Armitage] Ian Armitage mailto:ian&coactive.com 1999-08-01
[Ian_Stewart] Ian Stewart mailto:iandbige&yahoo.com 1999-06-01
[Ian_Wacey] Ian Wacey mailto:iain.wacey&gefalbany.ge.com 2000-05-01
[Ian_Wilson] Ian Wilson mailto:iwilson&cisco.com 2001-12-01
[Ido_Rosen] Ido Rosen mailto:ido&kernel.org 2021-03-23
[Instinet] Instinet mailto:uk.networks&instinet.co.uk 2019-08-29
[Intercontinental_Exchange_Inc.] Intercontinental Exchange, Inc. mailto:riradmin&theice.com 2023-04-10
[IOT_COMPANY_SOLUCOES_TECNOLOGICAS_LTDA] IOT COMPANY SOLUCOES TECNOLOGICAS LTDA mailto:contato&wisehome.io 2023-08-09
[IP_Admin] IP Admin mailto:ipaddr&agilent.com 2015-10-12
[IPadmin_-_Orange_Slovensko_a.s.] IPadmin - Orange Slovensko a.s. mailto:supervision&orange.sk 2021-06-11
[Ishan_Wu] Ishan Wu mailto:iwu&cisco.com 2000-03-01
[Itamar_Gilad] Itamar Gilad mailto:itamar&arootz.com 2007-08-31
[J._Ryan_Stinnett] J. Ryan Stinnett mailto:jryans&mozilla.com 2014-07-01
[James_Crawford] James Crawford mailto:jcrawford&metropol.net 1998-05-01
[Jan_Drwal] Jan Drwal mailto:Jan.Drwal&deutsche-boerse.com 2011-12-19
[Japan_Exchange_Group] Japan Exchange Group mailto:ITD-tradingsystem&jpx.co.jp 2021-09-07
[Japan_Exchange_Group_-_Osaka_Exchange_Inc.] Japan Exchange Group/Osaka Exchange, Inc. mailto:o-derisys-Op_Infra&jpx.co.jp 2024-06-25
[Jasmine_Strong] Jasmine Strong mailto:jasmine&heroicrobotics.com 2014-06-04
[Javier_Torres] Javier Torres Members Exchange (MEMX) mailto:jtorres&memx.com 2024-01-22
[Jean-Marc_MAGNIER] Jean-Marc MAGNIER mailto:f1sca&sfr.fr 2021-02-03
[Jeff_Schenk] Jeff Schenk mailto:Jeff.Schenk&intelliden.com 2006-03-31
[Jerome_Albin] Jerome Albin mailto:albin&taec.enet.dec.com 1997-06-01
[Jerry_Whitaker] Jerry Whitaker mailto:jwhitaker&atsc.org 2008-12-19
[Jim_Ginsburg] Jim Ginsburg mailto:JGinsburg&jonescorp.com 2007-10-31
[Jim_Lyle] Jim Lyle mailto:jim.lyle&siliconimage.com 2006-08-07
[Jim_Toga] Jim Toga mailto:jtoga&ibeam.jf.intel.com 1996-05-01
[Joel_Lynch] Joel Lynch mailto:joel.lynch&cnn.com 1999-04-01
[Johan_Deleu] Johan Deleu mailto:johan.deleu&alcatel.be 2002-02-01
[John_Catherino] John Catherino mailto:cajo&dev.java.net 2006-03-31
[John_Gabler] John Gabler mailto:john.gabler&ips.invensys.com 2007-07-06
[John_Veizades] John Veizades mailto:veizades&tgv.com 1995-05-01
[Jon_Crowcroft] Jon Crowcroft mailto:jon&hocus.cs.ucl.ac.uk 1998-11-01
[Jon_Gabriel] Jon Gabriel mailto:grabriel&tivoli.com 1998-12-01
[Jon_Postel] Jon Postel mailto:postel&isi.edu
[Jonathan_Niedfeldt] Jonathan Niedfeldt mailto:jon&digitalacoustics.com 2008-02-22
[Joost_Demarest] Joost Demarest KNX Association mailto:joost.demarest&knx.org 2023-08-23
[Jose_Luis_Marocho] Jose Luis Marocho mailto:73374.313&compuserve.com 1996-07-01
[Juan_Ayas] Juan Ayas mailto:jayas&lda-audiotech.com 2018-10-17
[Julian_Nevell] Julian Nevell mailto:JNEVELL&vbs.bt.co.uk 1999-08-01
[Justin_Beaman] Justin Beaman mailto:justin.beaman&midwestvideosolutions.com 2022-06-09
[Kalejdo_TV] Kalejdo TV mailto:mikael.nyberg&kalejdo.tv 2022-08-31
[Kang_Lee] Kang Lee mailto:kang.lee&nist.gov 2007-02-02
[Karel_Vesely] Karel Vesely Nej.cz s.r.o. mailto:karel.vesely&nej.cz 2024-01-23
[Karen_Seo] Karen Seo mailto:kseo&bbn.com
[Karl_Elad] Karl Elad mailto:karl.elad&intelsat.com 2006-03-31
[Keith_Thompson] Keith Thompson mailto:thompson&ridgeback.east.sun.com 2001-06-01
[Kelly_Littlepage] Kelly Littlepage mailto:kelly&onechronos.com 2023-08-29
[Kevin_Gross] Kevin Gross mailto:kvng&ieee.org 2010-03-12
[Kevin_Gross_2] Kevin Gross mailto:kevin.gross&avanw.com 2012-08-28
[Kevin_McNicholas] Kevin McNicholas mailto:kevin.mcnicholas&lucera.com 2026-06-26
[KNX_Association] KNX Association mailto:joost.demarest&knx.org 2023-08-23
[KPN_IP_Office] KPN IP Office mailto:kpn-ip-office&kpn.com 2011-04-18
[Kristian_A_Bognaes] Kristian A. Bognaes mailto:kristian.bognaes&norman.com 2014-01-08
[Lau_Wei_Lun] Lau Wei Lun mailto:weilun.lau&asianext.com 2023-03-03
[LDA_Audio_Tech] LDA Audio Tech mailto:info&lda-audiotech.com 2018-10-19
[Lev_V._Cherednikov] Lev V. Cherednikov mailto:lev.cherednikov&nbn-holding.ru 2014-04-12
[Liming_Wei] Liming Wei mailto:lwei&cisco.com 1998-10-01
[LIRNEasia] LIRNEasia mailto:nuwan&lirneasia.net 2020-10-07
[Lloyd_Wood] Lloyd Wood mailto:L.Wood&surrey.ac.uk 2011-03-17
[LME_Networks] LME Networks London Metal Exchange mailto:LME.Network&lme.com 2023-04-27
[London_Metal_Exchange] London Metal Exchange mailto:LME.Network&lme.com 2023-04-27
[London_Stock_Exchange_Group] London Stock Exchange Group https://www.lseg.com 2021-09-21
[LonMark_International] LonMark International mailto:tech&lonmark.org 2018-11-19
[Louis_Mamakos] Louis Mamakos mailto:louie&uu.net 1997-03-01
[Lucera_Financial_Infrastructures] Lucera Financial Infrastructures mailto:support&lucera.com 2026-06-26
[Lynton_Auld] Lynton Auld mailto:lauld&rgb.com 2024-11-04
[Maarten_van_Malland] Maarten van Malland Sentillia mailto:maarten&sentillia.com 2025-10-10
[Madhav_Karhade] Madhav Karhade mailto:Madhav.Karhade&wibhu.com 2003-05-01
[Mark_Armstrong] Mark Armstrong mailto:Mark.Armstrong&soleratec.com 2006-02-09
[Mark_Bakke] Mark Bakke mailto:mbakke&cisco.com 2001-12-01
[Mark_Hamilton] Mark Hamilton mailto:mah&spectralink.com 1998-11-01
[Mark_Handley] Mark Handley mailto:mjh&isi.edu 1998-12-01
[Mark_Lewis] Mark Lewis mailto:Mark_Lewis&ccm.jf.intel.com 1995-10-01
[Mark_Lipford] Mark Lipford mailto:mark.a.lipford&sprint.com 2006-07-11
[Marlon_Berlin] Marlon Berlin mailto:marlon.berlin&dns-net.de 2013-05-25
[Martin_Forssen] Martin Forssen mailto:maf&dtek.chalmers.se
[Mary_Timm] Mary Timm mailto:mary&xenoscience.com 1998-07-01
[Masato_Shindoh] Masato Shindoh mailto:jl11456&yamato.ibm.co.jp 1997-08-01
[Matthew_Straight] Matthew Straight mailto:matt_straight&yahoo.com 2007-03-01
[Maurice_Robberson] Maurice Robberson mailto:ceo&mediastreamusa.com 2006-09-15
[Media_Systems_OOO] Media Systems OOO mailto:noc&n3.ru 2021-10-22
[Mellanox] Mellanox Technologies, Inc. mailto:info&mellanox.com 2019-07-01
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[Meridian_Labs_LTD] Meridian Labs LTD. mailto:mark.wood&meridianlabs.org 2020-10-07
[MIAX] Miami International Security Exchange mailto:networking&miami-holdings.com 2023-05-24
[Michael_Caravetta] Michael Caravetta mailto:Network_Reps&tsx.com 2013-06-03
[Michael_DeMoney] Michael DeMoney mailto:demoney&eng.sun.com 1997-04-01
[Michael_Dolan] Michael Dolan mailto:miked&tbt.com 2003-10-01
[Michael_Lyle] Michael Lyle mailto:protocols&translattice.com 2009-11-11
[Michael_Rosenberg] Michael Rosenberg Nasdaq Inc. mailto:michael.rosenberg&nasdaq.com 2024-02-01
[Michael_Wang] Michael Wang mailto:Michael.Wang&usa.xerox.com 1999-03-01
[Midwest_Video_Solutions] Midwest Video Solutions mailto:support&midwestvideosolutions.com 2019-11-13
[Mika_Uusitalo] Mika Uusitalo mailto:msu&xingtech.com 1997-04-01
[Mike_King] Mike King mailto:mike.king&philips.com 2019-02-07
[Mike_Pontillo] Mike Pontillo mailto:mike.pontillo&canonical.com 2017-05-19
[Mike_Rodbell] Mike Rodbell mailto:mrodbell&ciena.com 1997-01-01
[Mike_Roper] Mike Roper mailto:mroper&8x8.com 1999-09-01
[Mike_Velten] Mike Velten mailto:mike_velten&liebert.com 1999-01-01
[Moe_Singh] Moe Singh mailto:moesingh&hotmail.com 2009-09-24
[Morten_Lindeman] Morten Lindeman mailto:Morten.Lindeman&os.telia.no 1999-03-01
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[Nadine_Guillaume] Nadine Guillaume mailto:nadine.guillaume&sciatl.com 2005-02-01
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[Neal_Lawrence] Neal Lawrence mailto:neal.lawrence&a2x.co.za 2017-06-02
[Nedelcho_Stanev] Nedelcho Stanev mailto:nstanev&csoft.bg 1999-05-01
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[NE-TEAM_at_telecomsys.com] NE-TEAM_at_telecomsys.com mailto:NE-TEAM&telecomsys.com 2014-11-07
[Nick_Barendt] Nick Barendt mailto:nbarendt&vxitech.com 2005-11-01
[Nigel_Thompson] Nigel Thompson mailto:nigelt&tribal.com 1999-01-01
[Nova_Goose_Global_Publishing_Group_Inc.] Nova Goose Global Publishing Group Inc. mailto:ngg-Publishing&hotmail.com 2026-08-20
[OCX_Group_Inc] OCX Group Inc mailto:noc&onechronos.com 2023-08-29
[Oliver_Lewis] Oliver Lewis mailto:o.lewis&icerobotics.co.uk 2006-07-11
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[Oyvind_H_Olsen] Oyvind H. Olsen mailto:oyvind-hollup.olsen&canaldigital.com 2007-09-12
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[Patrick_Cipiere] Patrick Cipiere mailto:Patrick.Cipiere&udcast.com 2001-01-01
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[Peter_Parnes] Peter Parnes mailto:peppar&marratech.com 2000-02-01
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[Pierre_Oliver] Pierre Oliver mailto:polivier&calamp.com 2011-06-06
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[Prakash_Banthia] Prakash Banthia mailto:prakash_banthia&3com.com 1998-09-01
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[Robert_Sautter] Robert Sautter mailto:rsautter&acdnj.itt.com 1999-08-01
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