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AS19574

Corporation Service Company

ARIN US active Announced
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Organization
Corporation Service Company
CSC
Registered
Dec 21, 2007
18 years ago
IPv4 Prefixes
6
3,328 addresses
IPv6 Prefixes
1
1 × /48
BGP Neighbours
3
3 upstream/peer · 0 downstream

Registration

AS Number AS19574 AS Name CSC Organization Corporation Service Company Organization ID CORPO-9 Address 251 Little Falls Drive, Wilmington, DE, 19808, United States Country United States (US) Registry ARIN Allocated Dec 21, 2007 Record Created Dec 21, 2007 Last Updated Mar 02, 2012 Status
active
WHOIS Server whois.arin.net AS Description CSC - Corporation Service Company, US Abuse Email [email protected] Abuse Phone +1-302-636-5400

IPv4 Prefixes

6 prefixes · 3,328 addresses Routing data as of 2026-10-08 16:00 UTC

PrefixRangeAddresses
165.160.12.0/24165.160.12.0 – 165.160.12.255256
165.160.13.0/24165.160.13.0 – 165.160.13.255256
165.160.14.0/24165.160.14.0 – 165.160.14.255256
165.160.15.0/24165.160.15.0 – 165.160.15.255256
165.160.16.0/24165.160.16.0 – 165.160.16.255256
165.160.32.0/21165.160.32.0 – 165.160.39.2552,048

IPv6 Prefixes

1 prefix · 1 × /48 Routing data as of 2026-10-08 16:00 UTC

PrefixAddresses
2620:8a::/48280

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 Business4011,258299
AS3356LEVEL3 - Level 3 Parent, LLC2676940
AS33657CMCS - Comcast Cable Communications, LLC403732

Raw RDAP Response

{
  "endAutnum": 19574,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2024-10-31T06:50:54-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2024-10-31T06:50:54-04:00"
            }
          ],
          "handle": "DOMAI486-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/DOMAI486-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/19574"
            },
            {
              "href": "https://whois.arin.net/rest/poc/DOMAI486-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/19574"
            }
          ],
          "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 2025-10-30"
              ],
              "title": "Unvalidated POC"
            }
          ],
          "roles": [
            "abuse"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "251 Little Falls Drive\nWilmington\nDE\n19808\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Domain Abuse"
              ],
              [
                "org",
                {},
                "text",
                "CSC"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-302-636-5400"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-08-27T06:51:26-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2008-01-24T14:18:24-05:00"
            }
          ],
          "handle": "ARINT19-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/ARINT19-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/19574"
            },
            {
              "href": "https://whois.arin.net/rest/poc/ARINT19-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/19574"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "technical"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "251 Little Falls Drive\nWilmington\nDE\n19808\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "ArinTech"
              ],
              [
                "org",
                {},
                "text",
                "Corporation Service Company"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-302-636-5400"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2025-11-07T07:44:58-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2008-01-24T14:06:20-05:00"
            }
          ],
          "handle": "ARINA60-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/ARINA60-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/19574"
            },
            {
              "href": "https://whois.arin.net/rest/poc/ARINA60-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/19574"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "administrative"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "251 Little Falls Drive\nWilmington\nDE\n19808\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "ArinAdmin"
              ],
              [
                "org",
                {},
                "text",
                "Corporation Service Company"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-302-636-5400"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2024-10-31T06:53:44-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2004-03-09T16:32:40-05:00"
        }
      ],
      "handle": "CORPO-9",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/CORPO-9",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/19574"
        },
        {
          "href": "https://whois.arin.net/rest/org/CORPO-9",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/19574"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Corporation Service Company"
          ],
          [
            "adr",
            {
              "label": "251 Little Falls Drive\nWilmington\nDE\n19808\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2012-03-02T08:03:18-05:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2007-12-21T13:25:32-05:00"
    }
  ],
  "handle": "AS19574",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/19574",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/19574"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS19574",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/19574"
    }
  ],
  "name": "CSC",
  "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/19574"
        }
      ],
      "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/19574"
        }
      ],
      "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": 19574,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.