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AS63039

Spok Inc.

ARIN US active Announced
More ASNs in the United States →
Organization
Spok Inc.
USMOASN
Registered
Jan 10, 2014
12 years ago
IPv4 Prefixes
19
6,912 addresses
IPv6 Prefixes
0
BGP Neighbours
3
3 upstream/peer · 0 downstream

Registration

AS Number AS63039 AS Name USMOASN Organization Spok Inc. Organization ID UMW-7 Address 3000 Technology Drive, suite 400, Plano, TX, 75074, United States Country United States (US) Registry ARIN Allocated Jan 10, 2014 Record Created Jan 10, 2014 Last Updated Jan 10, 2014 Status
active
WHOIS Server whois.arin.net AS Description USMOASN - Spok Inc., US Abuse Email [email protected] Abuse Phone +1-972-801-0000

IPv4 Prefixes

19 prefixes · 6,912 addresses Routing data as of 2026-10-08 08:00 UTC

PrefixRangeAddresses
63.97.34.0/2463.97.34.0 – 63.97.34.255256
147.187.0.0/24147.187.0.0 – 147.187.0.255256
147.187.1.0/24147.187.1.0 – 147.187.1.255256
147.187.10.0/24147.187.10.0 – 147.187.10.255256
147.187.12.0/23147.187.12.0 – 147.187.13.255512
147.187.14.0/24147.187.14.0 – 147.187.14.255256
147.187.15.0/24147.187.15.0 – 147.187.15.255256
147.187.16.0/22147.187.16.0 – 147.187.19.2551,024
147.187.100.0/24147.187.100.0 – 147.187.100.255256
147.187.110.0/24147.187.110.0 – 147.187.110.255256
147.187.112.0/23147.187.112.0 – 147.187.113.255512
147.187.115.0/24147.187.115.0 – 147.187.115.255256
147.187.116.0/22147.187.116.0 – 147.187.119.2551,024
147.187.128.0/24147.187.128.0 – 147.187.128.255256
147.187.129.0/24147.187.129.0 – 147.187.129.255256
147.187.130.0/24147.187.130.0 – 147.187.130.255256
147.187.132.0/24147.187.132.0 – 147.187.132.255256
147.187.133.0/24147.187.133.0 – 147.187.133.255256
147.187.255.0/24147.187.255.0 – 147.187.255.255256

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

3 unique neighbours · 3 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 (3)

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
AS701UUNET - Verizon Business3194,0990
AS19717MAINSTREAMDATA-375 - Mainstream Data, Inc.2571,6660
AS11427TWC-11427-TEXAS - Charter Communications Inc395610

Raw RDAP Response

{
  "endAutnum": 63039,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-05-08T10:17:31-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2013-01-16T16:02:42-05:00"
            }
          ],
          "handle": "TOC24-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/TOC24-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/63039"
            },
            {
              "href": "https://whois.arin.net/rest/poc/TOC24-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/63039"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "administrative",
            "abuse",
            "noc",
            "technical"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "3000 Technology Drive, Suite 400\nPlano\nTX\n75074\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Technical Operation Center"
              ],
              [
                "org",
                {},
                "text",
                "Spok Holdings Inc."
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-972-801-0000"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2025-05-06T17:09:22-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2013-09-10T19:18:40-04:00"
        }
      ],
      "handle": "UMW-7",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/UMW-7",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/63039"
        },
        {
          "href": "https://whois.arin.net/rest/org/UMW-7",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/63039"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Spok Inc."
          ],
          [
            "adr",
            {
              "label": "3000 Technology Drive, suite 400\nPlano\nTX\n75074\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2014-01-10T15:01:48-05:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2014-01-10T15:01:48-05:00"
    }
  ],
  "handle": "AS63039",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/63039",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/63039"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS63039",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/63039"
    }
  ],
  "name": "USMOASN",
  "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/63039"
        }
      ],
      "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/63039"
        }
      ],
      "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": 63039,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.