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AS20144

ICANN

ARIN US active Announced
More ASNs in the United States →
Organization
ICANN
IMRS
Registered
Mar 30, 2001
25 years ago
IPv4 Prefixes
9
2,304 addresses
IPv6 Prefixes
10
10 × /48
BGP Neighbours
109
70 upstream/peer · 0 downstream · 39 collector-only

Registration

AS Number AS20144 AS Name IMRS Organization ICANN Organization ID ICANN Address 12025 Waterfront Dr., Suite 300, Los Angeles, CA, 90094, United States Country United States (US) Registry ARIN Allocated Mar 30, 2001 Record Created Mar 30, 2001 Last Updated May 04, 2022 Status
active
WHOIS Server whois.arin.net AS Description IMRS - ICANN, US Remarks ICANN - DNS Engineering - www: http://www.dns.icann.org/imrs, The ICANN Managed Root Server (IMRS), One of the 13 Internet root name server,, is being operated by ICANN, AS20144 is dedicated for the use of IMRS and, distributed using Anycast., 24/7/365 NOC via email [email protected] via, phone +1.4… Abuse Email [email protected] Abuse Phone +1-310-301-3889

IPv4 Prefixes

9 prefixes · 2,304 addresses · 8 top-level Routing data as of 2026-10-06 16:00 UTC

PrefixRangeAddresses
192.0.37.0/24192.0.37.0 – 192.0.37.255256
192.0.38.0/24192.0.38.0 – 192.0.38.255256
192.0.40.0/24192.0.40.0 – 192.0.40.255256
192.0.41.0/24192.0.41.0 – 192.0.41.255256
199.7.82.0/23199.7.82.0 – 199.7.83.255512
199.7.83.0/24199.7.83.0 – 199.7.83.255256
199.7.94.0/24199.7.94.0 – 199.7.94.255256
199.7.95.0/24199.7.95.0 – 199.7.95.255256
199.43.132.0/24199.43.132.0 – 199.43.132.255256

IPv6 Prefixes

10 prefixes · 10 × /48 · 9 top-level Routing data as of 2026-10-06 16:00 UTC

PrefixAddresses
2001:500:3::/48280
2001:500:8c::/48280
2001:500:9c::/48280
2001:500:9d::/48280
2001:500:9e::/47281
2001:500:9f::/48280
2602:800:9004::/48280
2602:800:9005::/48280
2620:0:22b0::/48280
2620:0:2ee0::/48280

BGP Neighbours

109 unique neighbours · 70 upstream/peer · 0 downstream · 39 collector-only. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries.

Upstream & peer side (70)

Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS8452TE-AS - IDDQD-AS353332330
AS33544WILINE - WiLine Networks Inc.338332329
AS6939HURRICANE - Hurricane Electric LLC2721,1871,279
AS37100SEACOM Limited - SEACOM Limited256289111
AS1299TWELVE99 Arelion Sweden AB204353312
AS31713GWCOMMS-MPLS Gateway Communications1620239
AS2914NTT-DATA-2914 - NTT America, Inc.111134187
AS3491PCCWG-APAC-HK - PCCW Global (HK) Ltd.465027
AS3257GTT-BACKBONE GTT Communications Inc.375853
AS29049Delta-Telecom-AS Delta Telecom Ltd312124
AS2018Tertiary Education and Research Network of South Africa - Tertiary Education and Research Network of South Africa233618
AS12731IPHH IPHH Internet Port Hamburg GmbH232635
AS21497UMC-AS PrJSC "VF UKRAINE"20861
AS8220COLT COLT Technology Services Group Limited163031
AS20912ASN-PANSERVICE Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C."142725
AS37721Virtual Technologies & Solutions - Virtual Technologies & Solutions142335
AS6697BELPAK-AS Republican Unitary Telecommunication Enterprise Beltelecom122123
AS6968ZA CENTRAL REGISTRY NPC - ZA CENTRAL REGISTRY NPC121526
AS31287IPACCT-AS IPACCT CABLE Ltd121812
AS38880M21-AS-AP - Micron21 Datacentre Pty Ltd12138
AS15954Tecnocratica Tecnocratica Centro de Datos, S.L.101120
AS8265FASTNET-BKB-ASN FASTNET S.R.L.8613
AS8522FORTH-AS Foundation of Research and Technology Hellas82332
AS48716PSKZ-ALA PS Internet Company LLP779
AS53062AS53062 - GGNET TELECOMUNICACOES LTDA6140
AS1820WNET - WNET TELECOM USA Corp.5150
AS2495KANREN - Kansas Research and Education Network5515
AS3462HINET - Data Communication Business Group546
AS4826VOCUS-BACKBONE-AS - Vocus Connect International Backbone579
AS10084WAIA-TRANSIT-AP - Internet Association of Australia Content Network5718
AS18200OPT-NC-AS-AP - Office des Postes et Telecommunications New-Caledonia585
AS7004AS7004 - TELEFONICA CHILE S.A.479
AS8473BAHNHOF Bahnhof AB4815
AS13657E-GATE-COMMUNICATIONS - E-Gate Communications Inc.490
AS23028TEAM-CYMRU - Team Cymru Inc.4016
AS41494ASOCIATIA-INTERLAN Asociatia Interlan452
AS208398TELETECH Edge Technology Plus d.o.o. Beograd456
AS1797AS1797 - Uruguay349
AS7575AARNET-AS-AP - Australian Academic and Research Network (AARNet)303
AS9790TWO-DEGREES-AS-AP - Two Degrees Networks Limited348
AS21282KAZNIC-AS KazNIC Organization343
AS24990EQUINIX-FR-ASN Equinix France SAS332
AS263327AS263327 - ONLINE TELECOMUNICACOES LTDA330
AS263779AS263779 - Academia Nacional de Ciencias309
AS8966Etisalat-AS EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC202
AS13030INIT7 Init7 (Switzerland) Ltd.2100
AS13238YANDEX YANDEX LLC206
AS16735AS16735 - ALGAR TELECOM S/A236
AS17557PKTELECOM-AS-PK - Pakistan Telecommunication Company Limited212
AS29075IELO IELO-LIAZO SERVICES SAS246
AS34019HIVANE Hivane Association2812
AS34177CELESTE-AS Celeste SAS243
AS38229LEARN-LK - Lanka Education & Research Network, NREN263
AS42961GPRS-AS Mobile Telecommunications Company K.S.C.P.256
AS47445RIPN-RU-RND Join-stock company "Internet Exchange"MSK-IX"223
AS49638CATNIX Consorci de Serveis Universitaris de Catalunya243
AS137661RISL-AS-IN - Rajcomp Info Services Ltd.240
AS328200Al Madar Al Jadeed Joint Stock Company - Al Madar Al Jadeed Joint Stock Company223
AS286KPN GTT Communications Inc.113
AS1221ASN-TELSTRA - Telstra Limited103
AS1764NEXTLAYER-AS Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH123
AS6204ZET-NET TMRC GROUP SRL110
AS7590COMSATS - Commission on Science and Technology for101
AS7782ALSK-7782 - Alaska Communications Systems Group, Inc.110
AS19653CTSTELECOM - CTS Communications Corp120
AS27678AS27678 - NIC Chile110
AS29432TREX-AS TREX Regional Exchanges Oy126
AS33891CORE-BACKBONE Core-Backbone GmbH110
AS133296WEBWERKS-AS-IN - Web Werks India Pvt. Ltd.146
AS262249AS262249 - Secretaria Legal y Tecnica123

Collector-only (39)

Networks seen to the left of this AS only when they peer directly with a RIPE RIS route collector, so the adjacency may be an artefact of that peering; many of them also appear on the downstream side.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS1828UNITAS - Unitas Global123
AS6881NIXCZ NIX.CZ z.s.p.o.134
AS8218NEO-ASN Zayo Infrastructure France SA12128
AS9002RETN-AS RETN Limited111
AS14840AS14840 - BR.Digital Telecom1812
AS14907WIKIMEDIA - Wikimedia Foundation Inc.134
AS16347INHERENT ADISTA SAS121
AS17639CONVERGE-AS - Converge ICT Solutions Inc.110
AS18106VIEWQWEST-SG-AP - Viewqwest Pte Ltd134
AS22548AS22548 - Nucleo de Inf. e Coord. do Ponto BR - NIC.BR123
AS23951CITRA-AS-ID - PT JEMBATAN CITRA NUSANTARA123
AS24482SGGS-AS-AP - SG.GS12025
AS28624AS28624 - PROVEDORA CMA INTERNET LTDA123
AS28634AS28634 - Life Tecnologia Ltda.140
AS29504LBCFREE Freenet Liberec, z.s.134
AS35280F5 F5 Networks SARL1710
AS35600ASN-VEDEGE Vedege SAS123
AS36236NETACTUATE - NetActuate, Inc145
AS38001NEWMEDIAEXPRESS-AS-AP - NewMedia Express Pte Ltd104
AS40994Alwyzon Hohl IT e.U.134
AS44097AUTONOMOUS-CLOSET CLEMENT CAVADORE123
AS45489SLT-GLOBAL - Sri Lanka Telecom PLC, GLobal Peering114
AS45896MOBIFONEGLOBAL-AS-VN - Mobifone Global JSC130
AS49544i3Dnet i3D.net B.V156
AS51184FONIRA Fonira Telekom GmbH168
AS51185MAINSTREAMING-AS MainStreaming SpA136
AS52320AS52320 - GlobeNet Cabos Submarinos Colombia, S.A.S.103
AS52873AS52873 - Softdados Telecomunicacoes123
AS53046AS53046 - UNIVERSIDADE ESTADUAL DE PONTA GROSSA123
AS58952FRONTIIRCOLTD-MM - Frontiir Co. Ltd110
AS60503FNXTEC FNX Tecnologia LTDA123
AS61573AS61573 - IP TELECOM122
AS133210ENTECHNOLOGIES-AS-AP - EN Technologies Pte Ltd134
AS199524GCORE G-Core Labs S.A.1510
AS262427AS262427 - Invista Net Provedor de Acesso Ltda120
AS263152AS263152 - MIGO TELECOM123
AS263237AS263237 - PowerHost Telecom SPA113
AS264479AS264479 - Turbozone Internet121
AS271253AS271253 - LINK BRASIL TELECOMUNICACOES LTDA120

Raw RDAP Response

{
  "endAutnum": 20144,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2025-08-11T12:55:39-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2023-03-09T20:36:55-05:00"
            }
          ],
          "handle": "CORZO1-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/CORZO1-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/20144"
            },
            {
              "href": "https://whois.arin.net/rest/poc/CORZO1-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/20144"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "technical"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "fn",
                {},
                "text",
                "REDACTED"
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2024-08-06T10:52:25-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2020-09-21T13:36:50-04:00"
            }
          ],
          "handle": "ICANN-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/ICANN-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/20144"
            },
            {
              "href": "https://whois.arin.net/rest/poc/ICANN-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/20144"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "dns"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "12025 Waterfront Drive,\nSuite 300\nLos Angeles\nCA\n90094\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "ICANN DNS"
              ],
              [
                "org",
                {},
                "text",
                "ICANN"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-424-217-1313"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2025-10-16T13:50:11-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2001-06-26T16:55:06-04:00"
            }
          ],
          "handle": "ICANN-NET",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/ICANN-NET",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/20144"
            },
            {
              "href": "https://whois.arin.net/rest/poc/ICANN-NET",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/20144"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "abuse"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "12025 Waterfront Dr.\r\nSuite 300\nLos Angeles\nCA\n90094\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Internet Corporation for Assigned Names and Number"
              ],
              [
                "org",
                {},
                "text",
                "ICANN"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-310-301-3889"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2025-10-16T13:49:43-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2018-04-04T14:47:23-04:00"
            }
          ],
          "handle": "JENKI373-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/JENKI373-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/20144"
            },
            {
              "href": "https://whois.arin.net/rest/poc/JENKI373-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/20144"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "administrative",
            "technical"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "fn",
                {},
                "text",
                "REDACTED"
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2024-05-31T12:05:16-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2001-03-30T00:00:00-05:00"
        }
      ],
      "handle": "ICANN",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/ICANN",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/20144"
        },
        {
          "href": "https://whois.arin.net/rest/org/ICANN",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/20144"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "ICANN"
          ],
          [
            "adr",
            {
              "label": "12025 Waterfront Dr.\r\nSuite 300\nLos Angeles\nCA\n90094\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2022-05-04T13:34:04-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2001-03-30T00:00:00-05:00"
    }
  ],
  "handle": "AS20144",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/20144",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/20144"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS20144",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/20144"
    }
  ],
  "name": "IMRS",
  "notices": [
    {
      "description": [
        "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
      ],
      "links": [
        {
          "href": "https://www.arin.net/resources/registry/whois/tou/",
          "rel": "terms-of-service",
          "type": "text/html",
          "value": "https://rdap.arin.net/registry/autnum/20144"
        }
      ],
      "title": "Terms of Service"
    },
    {
      "description": [
        "If you see inaccuracies in the results, please visit: "
      ],
      "links": [
        {
          "href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
          "rel": "inaccuracy-report",
          "type": "text/html",
          "value": "https://rdap.arin.net/registry/autnum/20144"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    },
    {
      "description": [
        "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
      ],
      "title": "Copyright Notice"
    }
  ],
  "objectClassName": "autnum",
  "port43": "whois.arin.net",
  "rdapConformance": [
    "nro_rdap_profile_0",
    "rdap_level_0",
    "nro_rdap_profile_asn_flat_0"
  ],
  "remarks": [
    {
      "description": [
        "ICANN - DNS Engineering - www: http://www.dns.icann.org/imrs",
        "",
        "The ICANN Managed Root Server (IMRS), One of the 13 Internet root name server,",
        "is being operated by ICANN",
        "",
        "AS20144 is dedicated for the use of IMRS and",
        "distributed using Anycast.",
        "",
        "24/7/365 NOC via email [email protected] via",
        "phone +1.424.217.1313",
        "",
        "Visit http://as20144.peeringdb.com for our",
        "peering information"
      ],
      "title": "Registration Comments"
    }
  ],
  "startAutnum": 20144,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.