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AS1906

Northrop Grumman

ARIN US active Announced
More ASNs in the United States →
Organization
Northrop Grumman
NORTHROP-GRUMMAN
Registered
Jun 02, 1992
34 years ago
IPv4 Prefixes
75
834,304 addresses
IPv6 Prefixes
0
BGP Neighbours
1
1 upstream/peer · 0 downstream

Registration

AS Number AS1906 AS Name NORTHROP-GRUMMAN Organization Northrop Grumman Organization ID NORTHR-3 Address 2411 Dulles Corner Road, Suite 700, Herndon, VA, 20171, United States Country United States (US) Registry ARIN Allocated Jun 02, 1992 Record Created Jun 02, 1992 Last Updated Mar 02, 2012 Status
active
WHOIS Server whois.arin.net AS Description NORTHROP-GRUMMAN - Northrop Grumman, US Abuse Email [email protected] Abuse Phone +1-256-830-3606

IPv4 Prefixes

75 prefixes · 834,304 addresses · 57 top-level Routing data as of 2026-10-06 08:00 UTC

129.0.0.0/8 · 1 prefix · 65,536 addresses
PrefixRangeAddresses
129.4.0.0/16129.4.0.0 – 129.4.255.25565,536
130.0.0.0/8 · 1 prefix · 65,536 addresses
PrefixRangeAddresses
130.124.0.0/16130.124.0.0 – 130.124.255.25565,536
132.0.0.0/8 · 1 prefix · 65,536 addresses
PrefixRangeAddresses
132.228.0.0/16132.228.0.0 – 132.228.255.25565,536
134.0.0.0/8 · 18 prefixes · 65,536 addresses
PrefixRangeAddresses
134.223.0.0/16134.223.0.0 – 134.223.255.25565,536
134.223.4.0/22134.223.4.0 – 134.223.7.2551,024
134.223.8.0/22134.223.8.0 – 134.223.11.2551,024
134.223.17.0/24134.223.17.0 – 134.223.17.255256
134.223.19.0/24134.223.19.0 – 134.223.19.255256
134.223.128.0/20134.223.128.0 – 134.223.143.2554,096
134.223.160.0/20134.223.160.0 – 134.223.175.2554,096
134.223.184.0/22134.223.184.0 – 134.223.187.2551,024
134.223.188.0/22134.223.188.0 – 134.223.191.2551,024
134.223.192.0/19134.223.192.0 – 134.223.223.2558,192
134.223.224.0/19134.223.224.0 – 134.223.255.2558,192
134.223.224.0/22134.223.224.0 – 134.223.227.2551,024
134.223.228.0/23134.223.228.0 – 134.223.229.255512
134.223.230.0/24134.223.230.0 – 134.223.230.255256
134.223.231.0/24134.223.231.0 – 134.223.231.255256
134.223.232.0/24134.223.232.0 – 134.223.232.255256
134.223.236.0/22134.223.236.0 – 134.223.239.2551,024
134.223.239.0/24134.223.239.0 – 134.223.239.255256
137.0.0.0/8 · 1 prefix · 65,536 addresses
PrefixRangeAddresses
137.51.0.0/16137.51.0.0 – 137.51.255.25565,536
153.0.0.0/8 · 1 prefix · 65,536 addresses
PrefixRangeAddresses
153.113.0.0/16153.113.0.0 – 153.113.255.25565,536
155.0.0.0/8 · 1 prefix · 65,536 addresses
PrefixRangeAddresses
155.104.0.0/16155.104.0.0 – 155.104.255.25565,536
157.0.0.0/8 · 1 prefix · 65,536 addresses
PrefixRangeAddresses
157.127.0.0/16157.127.0.0 – 157.127.255.25565,536
158.0.0.0/8 · 1 prefix · 65,536 addresses
PrefixRangeAddresses
158.114.0.0/16158.114.0.0 – 158.114.255.25565,536
159.0.0.0/8 · 2 prefixes · 131,072 addresses
PrefixRangeAddresses
159.4.0.0/16159.4.0.0 – 159.4.255.25565,536
159.201.0.0/16159.201.0.0 – 159.201.255.25565,536
167.0.0.0/8 · 1 prefix · 32,768 addresses
PrefixRangeAddresses
167.225.0.0/17167.225.0.0 – 167.225.127.25532,768
192.0.0.0/8 · 24 prefixes · 71,168 addresses
PrefixRangeAddresses
192.31.248.0/24192.31.248.0 – 192.31.248.255256
192.35.84.0/24192.35.84.0 – 192.35.84.255256
192.45.0.0/16192.45.0.0 – 192.45.255.25565,536
192.45.0.0/19192.45.0.0 – 192.45.31.2558,192
192.83.248.0/24192.83.248.0 – 192.83.248.255256
192.86.67.0/24192.86.67.0 – 192.86.67.255256
192.86.68.0/24192.86.68.0 – 192.86.68.255256
192.86.69.0/24192.86.69.0 – 192.86.69.255256
192.86.70.0/24192.86.70.0 – 192.86.70.255256
192.86.71.0/24192.86.71.0 – 192.86.71.255256
192.86.72.0/24192.86.72.0 – 192.86.72.255256
192.86.73.0/24192.86.73.0 – 192.86.73.255256
192.86.74.0/24192.86.74.0 – 192.86.74.255256
192.86.75.0/24192.86.75.0 – 192.86.75.255256
192.86.76.0/24192.86.76.0 – 192.86.76.255256
192.107.246.0/24192.107.246.0 – 192.107.246.255256
192.112.60.0/24192.112.60.0 – 192.112.60.255256
192.112.143.0/24192.112.143.0 – 192.112.143.255256
192.112.144.0/24192.112.144.0 – 192.112.144.255256
192.112.146.0/24192.112.146.0 – 192.112.146.255256
192.112.147.0/24192.112.147.0 – 192.112.147.255256
192.135.211.0/24192.135.211.0 – 192.135.211.255256
192.135.212.0/24192.135.212.0 – 192.135.212.255256
192.150.201.0/24192.150.201.0 – 192.150.201.255256
198.0.0.0/8 · 4 prefixes · 1,024 addresses
PrefixRangeAddresses
198.17.147.0/24198.17.147.0 – 198.17.147.255256
198.49.249.0/24198.49.249.0 – 198.49.249.255256
198.180.218.0/24198.180.218.0 – 198.180.218.255256
198.202.184.0/24198.202.184.0 – 198.202.184.255256
199.0.0.0/8 · 12 prefixes · 3,072 addresses
PrefixRangeAddresses
199.26.33.0/24199.26.33.0 – 199.26.33.255256
199.26.34.0/24199.26.34.0 – 199.26.34.255256
199.26.35.0/24199.26.35.0 – 199.26.35.255256
199.26.36.0/24199.26.36.0 – 199.26.36.255256
199.26.37.0/24199.26.37.0 – 199.26.37.255256
199.26.38.0/24199.26.38.0 – 199.26.38.255256
199.26.39.0/24199.26.39.0 – 199.26.39.255256
199.26.50.0/24199.26.50.0 – 199.26.50.255256
199.36.17.0/24199.36.17.0 – 199.36.17.255256
199.165.146.0/24199.165.146.0 – 199.165.146.255256
199.165.147.0/24199.165.147.0 – 199.165.147.255256
199.165.148.0/24199.165.148.0 – 199.165.148.255256
204.0.0.0/8 · 1 prefix · 256 addresses
PrefixRangeAddresses
204.118.7.0/24204.118.7.0 – 204.118.7.255256
208.0.0.0/8 · 5 prefixes · 5,120 addresses
PrefixRangeAddresses
208.1.160.0/20208.1.160.0 – 208.1.175.2554,096
208.12.120.0/24208.12.120.0 – 208.12.120.255256
208.12.121.0/24208.12.121.0 – 208.12.121.255256
208.12.122.0/24208.12.122.0 – 208.12.122.255256
208.20.220.0/24208.20.220.0 – 208.20.220.255256

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

1 unique neighbour · 1 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 (1)

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
AS7018ATT-INTERNET4 - AT&T Enterprises, LLC27124,8130

Raw RDAP Response

{
  "endAutnum": 1906,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-03-12T10:03:57-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2009-03-19T04:06:50-04:00"
            }
          ],
          "handle": "RJO140-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/RJO140-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/1906"
            },
            {
              "href": "https://whois.arin.net/rest/poc/RJO140-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/1906"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "technical",
            "noc",
            "abuse"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "995 Research Blvd\nCharlottesville\nVA\n22911\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Ronjay Johnson"
              ],
              [
                "n",
                {},
                "text",
                [
                  "Johnson",
                  "Ronjay",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-256-830-3606"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-09-01T08:55:43-04:00"
            }
          ],
          "handle": "DA192-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/DA192-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/1906"
            },
            {
              "href": "https://whois.arin.net/rest/poc/DA192-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/1906"
            }
          ],
          "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": "2021-11-24T12:33:22-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2010-10-14T12:08:17-04:00"
            }
          ],
          "handle": "JML25-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/JML25-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/1906"
            },
            {
              "href": "https://whois.arin.net/rest/poc/JML25-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/1906"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "remarks": [
            {
              "description": [
                "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2022-11-24"
              ],
              "title": "Unvalidated POC"
            }
          ],
          "roles": [
            "administrative",
            "abuse",
            "noc",
            "technical"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "1100 W. Hollyvale St.\nAzusa\nCA\n91702\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "James Michael Lott"
              ],
              [
                "n",
                {},
                "text",
                [
                  "Lott",
                  "James",
                  "Michael",
                  "",
                  ""
                ]
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-626-812-2162"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "cell"
                  ]
                },
                "text",
                "+1-909-984-2602"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2024-11-25T11:09:46-05:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "1998-11-10T00:00:00-05:00"
        }
      ],
      "handle": "NORTHR-3",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/NORTHR-3",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/1906"
        },
        {
          "href": "https://whois.arin.net/rest/org/NORTHR-3",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/1906"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Northrop Grumman"
          ],
          [
            "adr",
            {
              "label": "2411 Dulles Corner Road, Suite 700\nHerndon\nVA\n20171\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2012-03-02T08:03:18-05:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "1992-06-02T00:00:00-04:00"
    }
  ],
  "handle": "AS1906",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/1906",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/1906"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS1906",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/1906"
    }
  ],
  "name": "NORTHROP-GRUMMAN",
  "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/1906"
        }
      ],
      "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/1906"
        }
      ],
      "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": 1906,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.