Dashboard / ASN Lookup / AS27137

AS27137

United States Department of Defense (DoD)

ARIN US active Announced

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Organization

United States Department of Defense (DoD)

DNIC-ASBLK-27032-27159

Registered

Jan 16, 2003

23 years ago

IPv4 Prefixes

8,448 addresses

IPv6 Prefixes

BGP Neighbours

1 upstream/peer · 1 downstream

Registration

AS Number AS27137 Registered Block AS27032 – AS27159 AS Name DNIC-ASBLK-27032-27159 Handle AS27032 Organization United States Department of Defense (DoD) Organization ID USDDD Address 3990 E. Broad Street, Columbus, OH, 43218, United States Country United States (US) Registry ARIN Allocated Jan 16, 2003 Record Created Jan 16, 2003 Last Updated Sep 12, 2025 Status

active

WHOIS Server whois.arin.net AS Description DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD), US Abuse Email [email protected] Abuse Phone +1-844-347-2457;ext2

IPv4 Prefixes

26 prefixes · 8,448 addresses Routing data as of 2026-10-15 08:00 UTC

Prefix	Range	Addresses
128.26.38.0/24	128.26.38.0 – 128.26.38.255	256
128.26.39.0/24	128.26.39.0 – 128.26.39.255	256
128.26.40.0/24	128.26.40.0 – 128.26.40.255	256
128.26.54.0/24	128.26.54.0 – 128.26.54.255	256
128.26.56.0/24	128.26.56.0 – 128.26.56.255	256
128.26.88.0/24	128.26.88.0 – 128.26.88.255	256
128.26.94.0/24	128.26.94.0 – 128.26.94.255	256
128.26.95.0/24	128.26.95.0 – 128.26.95.255	256
128.26.96.0/24	128.26.96.0 – 128.26.96.255	256
128.26.97.0/24	128.26.97.0 – 128.26.97.255	256
128.26.98.0/24	128.26.98.0 – 128.26.98.255	256
128.26.99.0/24	128.26.99.0 – 128.26.99.255	256
139.241.234.0/24	139.241.234.0 – 139.241.234.255	256
198.218.5.0/24	198.218.5.0 – 198.218.5.255	256
198.218.20.0/24	198.218.20.0 – 198.218.20.255	256
198.218.21.0/24	198.218.21.0 – 198.218.21.255	256
198.218.22.0/24	198.218.22.0 – 198.218.22.255	256
198.218.26.0/24	198.218.26.0 – 198.218.26.255	256
198.218.159.0/24	198.218.159.0 – 198.218.159.255	256
198.218.175.0/24	198.218.175.0 – 198.218.175.255	256
198.219.147.0/24	198.219.147.0 – 198.219.147.255	256
198.220.71.0/24	198.220.71.0 – 198.220.71.255	256
198.220.187.0/24	198.220.187.0 – 198.220.187.255	256
214.6.250.0/24	214.6.250.0 – 214.6.250.255	256
214.25.177.0/24	214.25.177.0 – 214.25.177.255	256
214.51.16.0/21	214.51.16.0 – 214.51.23.255	2,048

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

2 unique neighbours · 1 upstream/peer · 1 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 (1)

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

AS	Name	AS paths	IPv4 sightings	IPv6 sightings
AS27066	DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD)	534	10,230	0

Downstream side (1)

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

AS	Name	AS paths	IPv4 sightings	IPv6 sightings
AS3472	DNIC-AS-03472 - United States Department of Defense (DoD)	258	1,653	0

Raw RDAP Response

{
  "endAutnum": 27159,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-02-12T10:14:24-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "1993-05-26T19:47:50-04:00"
            }
          ],
          "handle": "MIL-HSTMST-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/27137"
            },
            {
              "href": "https://whois.arin.net/rest/poc/MIL-HSTMST-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/27137"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "noc",
            "abuse",
            "technical"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "DISA-Columbus\n300 North James Road\nWhitehall\nOH\n43213\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Network DoD"
              ],
              [
                "org",
                {},
                "text",
                "DoD Network Information Center (DoD NIC)"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-844-347-2457;ext2"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-02-12T13:52:28-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2009-06-24T09:41:15-04:00"
            }
          ],
          "handle": "REGIS10-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/REGIS10-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/27137"
            },
            {
              "href": "https://whois.arin.net/rest/poc/REGIS10-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/27137"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "administrative",
            "technical"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "DISA-Columbus\n300 North James Road\nWhitehall\nOH\n43213\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Registration"
              ],
              [
                "org",
                {},
                "text",
                "DoD Network Information Center"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-844-347-2457;ext2"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2026-08-12T11:35:39-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2007-01-12T12:10:52-05:00"
        }
      ],
      "handle": "USDDD",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/USDDD",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/27137"
        },
        {
          "href": "https://whois.arin.net/rest/org/USDDD",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/27137"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "United States Department of Defense (DoD)"
          ],
          [
            "adr",
            {
              "label": "3990 E. Broad Street\nColumbus\nOH\n43218\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2025-09-12T11:28:03-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2003-01-16T15:37:31-05:00"
    }
  ],
  "handle": "AS27032",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/27032",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/27137"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS27032",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/27137"
    }
  ],
  "name": "DNIC-ASBLK-27032-27159",
  "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/27137"
        }
      ],
      "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/27137"
        }
      ],
      "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": 27032,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.