IP Lookup ASN Lookup Learning Hub
Dashboard / ASN Lookup / AS2544

AS2544

King County Gov

ARIN US active Announced
More ASNs in the United States →
Organization
King County Gov
METRO-AS
Registered
Mar 09, 1993
33 years ago
IPv4 Prefixes
22
65,792 addresses
IPv6 Prefixes
0
BGP Neighbours
24
10 upstream/peer · 8 downstream · 6 collector-only

Registration

AS Number AS2544 AS Name METRO-AS Organization King County Gov Organization ID MMS-7 Address 401 5th AVE, Suite 700, Seattle, WA, 98104, United States Country United States (US) Registry ARIN Allocated Mar 09, 1993 Record Created Mar 09, 1993 Last Updated Apr 07, 2010 Status
active
WHOIS Server whois.arin.net AS Description METRO-AS - King County Gov, US Abuse Email [email protected] Abuse Phone +1-206-263-7000

IPv4 Prefixes

22 prefixes · 65,792 addresses · 2 top-level Routing data as of 2026-10-03 16:00 UTC

PrefixRangeAddresses
146.129.0.0/16146.129.0.0 – 146.129.255.25565,536
146.129.0.0/17146.129.0.0 – 146.129.127.25532,768
146.129.128.0/18146.129.128.0 – 146.129.191.25516,384
146.129.192.0/19146.129.192.0 – 146.129.223.2558,192
146.129.224.0/20146.129.224.0 – 146.129.239.2554,096
146.129.240.0/24146.129.240.0 – 146.129.240.255256
146.129.241.0/24146.129.241.0 – 146.129.241.255256
146.129.242.0/24146.129.242.0 – 146.129.242.255256
146.129.243.0/24146.129.243.0 – 146.129.243.255256
146.129.244.0/24146.129.244.0 – 146.129.244.255256
146.129.245.0/24146.129.245.0 – 146.129.245.255256
146.129.246.0/24146.129.246.0 – 146.129.246.255256
146.129.247.0/24146.129.247.0 – 146.129.247.255256
146.129.248.0/24146.129.248.0 – 146.129.248.255256
146.129.249.0/24146.129.249.0 – 146.129.249.255256
146.129.250.0/24146.129.250.0 – 146.129.250.255256
146.129.251.0/24146.129.251.0 – 146.129.251.255256
146.129.252.0/24146.129.252.0 – 146.129.252.255256
146.129.253.0/24146.129.253.0 – 146.129.253.255256
146.129.254.0/24146.129.254.0 – 146.129.254.255256
146.129.255.0/24146.129.255.0 – 146.129.255.255256
198.49.222.0/24198.49.222.0 – 198.49.222.255256

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

24 unique neighbours · 10 upstream/peer · 8 downstream · 6 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 (10)

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
AS174COGENT-174 - Cogent Communications, LLC1,7969,1660
AS6939HURRICANE - Hurricane Electric LLC3181,5230
AS14361HOPONE-GLOBAL - HopOne Internet Corporation1096470
AS18530ISOMEDIA-1 - Isomedia, Inc.981410
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTD26860
AS9002RETN-AS RETN Limited19750
AS394256CLOUDSINGULARITY - Tech Futures Interactive Inc.10380
AS7575AARNET-AS-AP - Australian Academic and Research Network (AARNet)9370
AS52025PARADOXNETWORKS-LIMITED ParadoxNetworks Limited6110
AS20326TERASWITCH - TeraSwitch Networks Inc.150

Downstream side (8)

Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams).

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS33348PIERCE-COUNTY - Pierce County5901,8390
AS32148KCLS - King County Library System5079890
AS399987TACOMA-PIERCE-COUNTY-HEALTH-DEPARTMENT - Tacoma-Pierce County Health Department2626560
AS30198KENT-SCHOOL-DISTRICT - Kent School District2618980
AS396890CITYOFREDMOND - City of Redmond Washington2523280
AS63432PSRFA-ANS - Puget Sound Regional Fire Authority2513280
AS19014NORCOM - NORCOM36480
AS394640TSD409-NET - Tahoma School District No. 40933400

Collector-only (6)

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
AS24482SGGS-AS-AP - SG.GS104070
AS35280F5 F5 Networks SARL10380
AS36236NETACTUATE - NetActuate, Inc10380
AS49544i3Dnet i3D.net B.V10760
AS18106VIEWQWEST-SG-AP - Viewqwest Pte Ltd9370
AS34927iFog-GmbH iFog GmbH5270

Raw RDAP Response

{
  "endAutnum": 2544,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-04-30T12:17:50-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2008-01-09T07:18:21-05:00"
            }
          ],
          "handle": "NOC2926-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/NOC2926-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/2544"
            },
            {
              "href": "https://whois.arin.net/rest/poc/NOC2926-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/2544"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "abuse",
            "noc",
            "technical",
            "administrative"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "401 Fifth Ave suite 0700\nSeattle\nWA\n98104\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Network Operations Center"
              ],
              [
                "org",
                {},
                "text",
                "King County, Washington"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-206-263-7000"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2018-12-12T14:18:28-05:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "1991-02-08T00:00:00-05:00"
        }
      ],
      "handle": "MMS-7",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/MMS-7",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/2544"
        },
        {
          "href": "https://whois.arin.net/rest/org/MMS-7",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/2544"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "King County Gov"
          ],
          [
            "adr",
            {
              "label": "401 5th AVE\nSuite 700\nSeattle\nWA\n98104\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2010-04-07T16:05:49-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "1993-03-09T00:00:00-05:00"
    }
  ],
  "handle": "AS2544",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/2544",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/2544"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS2544",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/2544"
    }
  ],
  "name": "METRO-AS",
  "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/2544"
        }
      ],
      "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/2544"
        }
      ],
      "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"
  ],
  "startAutnum": 2544,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.