Dashboard / ASN Lookup / AS39921

AS39921

Rackspace Ltd.

RIPE NCC GB active Announced
More ASNs in the United Kingdom →
Organization
Rackspace Ltd.
DE-RACKSPACE
Registered
May 17, 2006
20 years ago
IPv4 Prefixes
8
24,832 addresses
IPv6 Prefixes
2
65,536 × /48
BGP Neighbours
1
1 upstream/peer · 0 downstream

Registration

AS Number AS39921 AS Name DE-RACKSPACE Organization Rackspace Ltd. Organization ID ORG-RA33-RIPE Address 1 Fanatical Place, 78218, Windcrest, UNITED STATES Country United Kingdom (GB) Registry RIPE NCC Allocated May 17, 2006 Record Created May 17, 2006 Last Updated Sep 04, 2018 Status
active
WHOIS Server whois.ripe.net AS Description DE-RACKSPACE - Rackspace Ltd., GB Remarks Frankfurt, Germany, Rackspace Managed Hosting (ASN), and ASNs we announce to peers Abuse Email [email protected]

IPv4 Prefixes

8 prefixes · 24,832 addresses Routing data as of 2026-10-09 00:00 UTC

PrefixRangeAddresses
72.21.36.0/2272.21.36.0 – 72.21.39.2551,024
147.75.24.0/22147.75.24.0 – 147.75.27.2551,024
159.135.80.0/20159.135.80.0 – 159.135.95.2554,096
159.135.128.0/19159.135.128.0 – 159.135.159.2558,192
159.135.160.0/19159.135.160.0 – 159.135.191.2558,192
185.16.216.0/22185.16.216.0 – 185.16.219.2551,024
185.205.104.0/22185.205.104.0 – 185.205.107.2551,024
192.68.42.0/24192.68.42.0 – 192.68.42.255256

IPv6 Prefixes

2 prefixes · 65,536 × /48 · 1 top-level Routing data as of 2026-10-09 00:00 UTC

PrefixAddresses
2a0b:440::/32296
2a0b:440:860::/43285

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
AS12200RACKSPACE - Rackspace Hosting5852,846687

Raw RDAP Response

{
  "handle": "AS39921",
  "startAutnum": 39921,
  "endAutnum": 39921,
  "name": "DE-RACKSPACE",
  "status": [
    "active"
  ],
  "entities": [
    {
      "handle": "IA247-RIPE",
      "vcardArray": [
        "vcard",
        [
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            "version",
            {},
            "text",
            "4.0"
          ],
          [
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            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ],
      "roles": [
        "administrative",
        "technical"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/39921",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/IA247-RIPE"
        },
        {
          "value": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity"
    },
    {
      "handle": "ORG-RA33-RIPE",
      "vcardArray": [
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        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Rackspace Ltd."
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ],
          [
            "adr",
            {
              "label": "1 Fanatical Place\n78218\nWindcrest\nUNITED STATES"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+1 210 312 2176"
          ]
        ]
      ],
      "roles": [
        "registrant"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/39921",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/ORG-RA33-RIPE"
        },
        {
          "value": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity"
    },
    {
      "handle": "RIPE-NCC-END-MNT",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ],
      "roles": [
        "registrant"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/39921",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/RIPE-NCC-END-MNT"
        },
        {
          "value": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity"
    },
    {
      "handle": "RSPC-MNT",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ],
      "roles": [
        "registrant"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/39921",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/RSPC-MNT"
        },
        {
          "value": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity"
    },
    {
      "handle": "RMHC1-RIPE",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Rackspace Managed Hosting Contact Role"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "5000 Walzem Rd San Antonio, Texas 78218"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "email",
            {
              "type": "abuse"
            },
            "text",
            "[email protected]"
          ]
        ]
      ],
      "roles": [
        "abuse"
      ],
      "entities": [
        {
          "handle": "DB1452-RIPE",
          "vcardArray": [
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                "REDACTED"
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ]
            ]
          ],
          "roles": [
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          ],
          "links": [
            {
              "value": "https://rdap.db.ripe.net/autnum/39921",
              "rel": "self",
              "href": "https://rdap.db.ripe.net/entity/DB1452-RIPE"
            },
            {
              "value": "http://www.ripe.net/data-tools/support/documentation/terms",
              "rel": "copyright",
              "href": "http://www.ripe.net/data-tools/support/documentation/terms"
            }
          ],
          "objectClassName": "entity"
        },
        {
          "handle": "IA247-RIPE",
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                "version",
                {},
                "text",
                "4.0"
              ],
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                "REDACTED"
              ],
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                "kind",
                {},
                "text",
                "individual"
              ]
            ]
          ],
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          ],
          "links": [
            {
              "value": "https://rdap.db.ripe.net/autnum/39921",
              "rel": "self",
              "href": "https://rdap.db.ripe.net/entity/IA247-RIPE"
            },
            {
              "value": "http://www.ripe.net/data-tools/support/documentation/terms",
              "rel": "copyright",
              "href": "http://www.ripe.net/data-tools/support/documentation/terms"
            }
          ],
          "objectClassName": "entity"
        },
        {
          "handle": "RD1564-RIPE",
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "fn",
                {},
                "text",
                "REDACTED"
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ]
            ]
          ],
          "roles": [
            "technical"
          ],
          "links": [
            {
              "value": "https://rdap.db.ripe.net/autnum/39921",
              "rel": "self",
              "href": "https://rdap.db.ripe.net/entity/RD1564-RIPE"
            },
            {
              "value": "http://www.ripe.net/data-tools/support/documentation/terms",
              "rel": "copyright",
              "href": "http://www.ripe.net/data-tools/support/documentation/terms"
            }
          ],
          "objectClassName": "entity"
        },
        {
          "handle": "RSPC-MNT",
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "fn",
                {},
                "text",
                "REDACTED"
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ]
            ]
          ],
          "roles": [
            "registrant"
          ],
          "links": [
            {
              "value": "https://rdap.db.ripe.net/autnum/39921",
              "rel": "self",
              "href": "https://rdap.db.ripe.net/entity/RSPC-MNT"
            },
            {
              "value": "http://www.ripe.net/data-tools/support/documentation/terms",
              "rel": "copyright",
              "href": "http://www.ripe.net/data-tools/support/documentation/terms"
            }
          ],
          "objectClassName": "entity"
        }
      ],
      "objectClassName": "entity"
    }
  ],
  "remarks": [
    {
      "description": [
        "Frankfurt, Germany",
        "Rackspace Managed Hosting (ASN)",
        "and ASNs we announce to peers"
      ]
    }
  ],
  "links": [
    {
      "value": "https://rdap.db.ripe.net/autnum/39921",
      "rel": "rdap-up",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS39921",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/39921",
      "rel": "rdap-up rdap-active",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS39921?status=active",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/39921",
      "rel": "rdap-down",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS39921",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/39921",
      "rel": "rdap-top",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS39921",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/39921",
      "rel": "rdap-top rdap-active",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS39921?status=active",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/39921",
      "rel": "rdap-bottom",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS39921",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/39921",
      "rel": "self",
      "href": "https://rdap.db.ripe.net/autnum/39921",
      "type": "application/rdap+json"
    },
    {
      "value": "http://www.ripe.net/data-tools/support/documentation/terms",
      "rel": "copyright",
      "href": "http://www.ripe.net/data-tools/support/documentation/terms"
    }
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2006-05-17T13:35:13Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2018-09-04T10:16:06Z"
    }
  ],
  "rdapConformance": [
    "nro_rdap_profile_asn_flat_0",
    "rirSearch1",
    "autnums",
    "cidr0",
    "rdap_level_0",
    "nro_rdap_profile_0",
    "redacted"
  ],
  "notices": [
    {
      "title": "Filtered",
      "description": [
        "This output has been filtered."
      ]
    },
    {
      "title": "Whois Inaccuracy Reporting",
      "description": [
        "If you see inaccuracies in the results, please visit:"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/39921",
          "rel": "inaccuracy-report",
          "href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
          "type": "text/html"
        }
      ]
    },
    {
      "title": "Source",
      "description": [
        "Objects returned came from source",
        "RIPE"
      ]
    },
    {
      "title": "Terms and Conditions",
      "description": [
        "This is the RIPE Database query service. The objects are in RDAP format."
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/39921",
          "rel": "terms-of-service",
          "href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
          "type": "application/pdf"
        }
      ]
    }
  ],
  "port43": "whois.ripe.net",
  "objectClassName": "autnum",
  "redacted": [
    {
      "name": {
        "description": "Personal e-mail information"
      },
      "reason": {
        "description": "Personal data"
      },
      "prePath": "$.entities[?(@.handle=='IA247-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "method": "removal"
    },
    {
      "name": {
        "description": "Personal e-mail information"
      },
      "reason": {
        "description": "Personal data"
      },
      "prePath": "$.entities[?(@.handle=='ORG-RA33-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "method": "removal"
    },
    {
      "name": {
        "description": "Personal e-mail information"
      },
      "reason": {
        "description": "Personal data"
      },
      "prePath": "$.entities[?(@.handle=='RMHC1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "method": "removal"
    }
  ]
}

Contact details of private individuals are redacted.