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AS11283

Costco Wholesale Corporation

ARIN US active Announced
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Organization
Costco Wholesale Corporation
COSTCO
Registered
Jun 11, 1998
28 years ago
IPv4 Prefixes
46
12,544 addresses
IPv6 Prefixes
0
BGP Neighbours
2
2 upstream/peer · 0 downstream

Registration

AS Number AS11283 AS Name COSTCO Organization Costco Wholesale Corporation Organization ID COSTCO-3 Address 999 Lake Dr., Issaquah, WA, 98027, United States Country United States (US) Registry ARIN Allocated Jun 11, 1998 Record Created Jun 11, 1998 Last Updated Mar 02, 2012 Status
active
WHOIS Server whois.arin.net AS Description COSTCO - Costco, Inc., US Abuse Email [email protected] Abuse Phone +1-425-313-8100

IPv4 Prefixes

46 prefixes · 12,544 addresses Routing data as of 2026-10-10 00:00 UTC

170.0.0.0/8 · 46 prefixes · 12,544 addresses
PrefixRangeAddresses
170.167.0.0/24170.167.0.0 – 170.167.0.255256
170.167.1.0/24170.167.1.0 – 170.167.1.255256
170.167.2.0/24170.167.2.0 – 170.167.2.255256
170.167.3.0/24170.167.3.0 – 170.167.3.255256
170.167.4.0/24170.167.4.0 – 170.167.4.255256
170.167.5.0/24170.167.5.0 – 170.167.5.255256
170.167.6.0/24170.167.6.0 – 170.167.6.255256
170.167.7.0/24170.167.7.0 – 170.167.7.255256
170.167.8.0/24170.167.8.0 – 170.167.8.255256
170.167.10.0/24170.167.10.0 – 170.167.10.255256
170.167.11.0/24170.167.11.0 – 170.167.11.255256
170.167.48.0/24170.167.48.0 – 170.167.48.255256
170.167.49.0/24170.167.49.0 – 170.167.49.255256
170.167.50.0/24170.167.50.0 – 170.167.50.255256
170.167.51.0/24170.167.51.0 – 170.167.51.255256
170.167.52.0/24170.167.52.0 – 170.167.52.255256
170.167.53.0/24170.167.53.0 – 170.167.53.255256
170.167.54.0/24170.167.54.0 – 170.167.54.255256
170.167.55.0/24170.167.55.0 – 170.167.55.255256
170.167.56.0/24170.167.56.0 – 170.167.56.255256
170.167.57.0/24170.167.57.0 – 170.167.57.255256
170.167.63.0/24170.167.63.0 – 170.167.63.255256
170.167.100.0/24170.167.100.0 – 170.167.100.255256
170.167.101.0/24170.167.101.0 – 170.167.101.255256
170.167.102.0/24170.167.102.0 – 170.167.102.255256
170.167.103.0/24170.167.103.0 – 170.167.103.255256
170.167.104.0/24170.167.104.0 – 170.167.104.255256
170.167.105.0/24170.167.105.0 – 170.167.105.255256
170.167.106.0/24170.167.106.0 – 170.167.106.255256
170.167.107.0/24170.167.107.0 – 170.167.107.255256
170.167.108.0/24170.167.108.0 – 170.167.108.255256
170.167.110.0/24170.167.110.0 – 170.167.110.255256
170.167.111.0/24170.167.111.0 – 170.167.111.255256
170.167.117.0/24170.167.117.0 – 170.167.117.255256
170.167.118.0/24170.167.118.0 – 170.167.118.255256
170.167.192.0/23170.167.192.0 – 170.167.193.255512
170.167.194.0/24170.167.194.0 – 170.167.194.255256
170.167.195.0/24170.167.195.0 – 170.167.195.255256
170.167.196.0/24170.167.196.0 – 170.167.196.255256
170.167.197.0/24170.167.197.0 – 170.167.197.255256
170.167.201.0/24170.167.201.0 – 170.167.201.255256
170.167.240.0/24170.167.240.0 – 170.167.240.255256
170.167.244.0/23170.167.244.0 – 170.167.245.255512
170.167.246.0/23170.167.246.0 – 170.167.247.255512
170.167.248.0/24170.167.248.0 – 170.167.248.255256
170.167.249.0/24170.167.249.0 – 170.167.249.255256

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

2 unique neighbours · 2 upstream/peer · 0 downstream. 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 (2)

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
AS6461ZAYO-6461 - Zayo Bandwidth3841,3680
AS3356LEVEL3 - Level 3 Parent, LLC29114,0120

Raw RDAP Response

{
  "endAutnum": 11283,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-04-17T12:48:52-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2001-12-18T13:46:57-05:00"
            }
          ],
          "handle": "ZC167-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/ZC167-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/11283"
            },
            {
              "href": "https://whois.arin.net/rest/poc/ZC167-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/11283"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "technical",
            "abuse",
            "administrative"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "999 LAKE DRIVE\nISSAQUAH\nWA\n98027\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "COSTCO INC"
              ],
              [
                "org",
                {},
                "text",
                "COSTCO INC."
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-425-313-8100"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2026-04-01T16:23:24-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "1998-06-11T00:00:00-04:00"
        }
      ],
      "handle": "COSTCO-3",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/COSTCO-3",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/11283"
        },
        {
          "href": "https://whois.arin.net/rest/org/COSTCO-3",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/11283"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Costco Wholesale Corporation"
          ],
          [
            "adr",
            {
              "label": "999 Lake Dr.\nIssaquah\nWA\n98027\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    },
    {
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2026-04-17T12:48:52-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2001-12-18T13:46:57-05:00"
        }
      ],
      "handle": "ZC167-ARIN",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/ZC167-ARIN",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/11283"
        },
        {
          "href": "https://whois.arin.net/rest/poc/ZC167-ARIN",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/11283"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "technical"
      ],
      "status": [
        "validated"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "adr",
            {
              "label": "999 LAKE DRIVE\nISSAQUAH\nWA\n98027\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "fn",
            {},
            "text",
            "COSTCO INC"
          ],
          [
            "org",
            {},
            "text",
            "COSTCO INC."
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "tel",
            {
              "type": [
                "work",
                "voice"
              ]
            },
            "text",
            "+1-425-313-8100"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2012-03-02T08:03:18-05:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "1998-06-11T00:00:00-04:00"
    }
  ],
  "handle": "AS11283",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/11283",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/11283"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS11283",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/11283"
    }
  ],
  "name": "COSTCO",
  "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/11283"
        }
      ],
      "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/11283"
        }
      ],
      "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": 11283,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.