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AS21858

Ascent Data, LLC

ARIN US active Announced
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Organization
Ascent Data, LLC
ASCENT-DATA-LLC
Registered
Jun 29, 2001
25 years ago
IPv4 Prefixes
6
2,048 addresses
IPv6 Prefixes
1
65,536 × /48
BGP Neighbours
2
2 upstream/peer · 1 downstream

Registration

AS Number AS21858 AS Name ASCENT-DATA-LLC Organization Ascent Data, LLC Organization ID ASCEN-37 Address 90 Beta Drive, Pittsburgh, PA, 15238, United States Country United States (US) Registry ARIN Allocated Jun 29, 2001 Record Created Jun 29, 2001 Last Updated Mar 02, 2012 Status
active
WHOIS Server whois.arin.net AS Description ASCENT-DATA-LLC - Ascent Data, LLC, US Abuse Email [email protected] Abuse Phone +1-412-968-4030

IPv4 Prefixes

6 prefixes · 2,048 addresses · 1 top-level Routing data as of 2026-10-15 00:00 UTC

PrefixRangeAddresses
208.70.64.0/21208.70.64.0 – 208.70.71.2552,048
208.70.64.0/23208.70.64.0 – 208.70.65.255512
208.70.64.0/24208.70.64.0 – 208.70.64.255256
208.70.66.0/24208.70.66.0 – 208.70.66.255256
208.70.68.0/24208.70.68.0 – 208.70.68.255256
208.70.71.0/24208.70.71.0 – 208.70.71.255256

IPv6 Prefixes

1 prefix · 65,536 × /48 Routing data as of 2026-10-15 00:00 UTC

PrefixAddresses
2607:ffa8::/32296

BGP Neighbours

2 unique neighbours · 2 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 (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 Bandwidth3902,178333
AS11924MONTANA-OPTICOM - Montana Opticom, LLC16720

Downstream side (1)

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

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS11924MONTANA-OPTICOM - Montana Opticom, LLC472340

Raw RDAP Response

{
  "endAutnum": 21858,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-10-02T08:45:51-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2010-05-07T11:01:43-04:00"
            }
          ],
          "handle": "ADTC-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/ADTC-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/21858"
            },
            {
              "href": "https://whois.arin.net/rest/poc/ADTC-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/21858"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "technical",
            "administrative"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "90 Beta Dr.\nPittsburgh\nPA\n15238\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Ascent Data Technical Contact"
              ],
              [
                "org",
                {},
                "text",
                "Ascent Data, LLC"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-412-968-4000"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2018-11-19T07:01:36-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2008-02-15T17:06:30-05:00"
            }
          ],
          "handle": "RESPO1-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/RESPO1-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/21858"
            },
            {
              "href": "https://whois.arin.net/rest/poc/RESPO1-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/21858"
            }
          ],
          "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 2019-11-19"
              ],
              "title": "Unvalidated POC"
            }
          ],
          "roles": [
            "abuse",
            "noc"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "90 Beta Drive\nPittsburgh\nPA\n15238\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Response Center"
              ],
              [
                "org",
                {},
                "text",
                "Ascent Data Corporation"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-412-968-4030"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2017-09-06T14:18:04-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2009-06-29T08:42:37-04:00"
        }
      ],
      "handle": "ASCEN-37",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/ASCEN-37",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/21858"
        },
        {
          "href": "https://whois.arin.net/rest/org/ASCEN-37",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/21858"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Ascent Data, LLC"
          ],
          [
            "adr",
            {
              "label": "90 Beta Drive\nPittsburgh\nPA\n15238\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2012-03-02T08:03:18-05:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2001-06-29T00:00:00-04:00"
    }
  ],
  "handle": "AS21858",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/21858",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/21858"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS21858",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/21858"
    }
  ],
  "name": "ASCENT-DATA-LLC",
  "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/21858"
        }
      ],
      "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/21858"
        }
      ],
      "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": 21858,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.