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AS23028

Team Cymru Inc.

ARIN US active Announced
More ASNs in the United States →
Organization
Team Cymru Inc.
TEAM-CYMRU
Registered
Jan 04, 2002
24 years ago
IPv4 Prefixes
28
17,920 addresses
IPv6 Prefixes
16
65,537 × /48
BGP Neighbours
8
7 upstream/peer · 1 downstream

Registration

AS Number AS23028 AS Name TEAM-CYMRU Organization Team Cymru Inc. Organization ID TEAMC-1 Address 901 International Parkway, Suite 350, Lake Mary, FL, 32746, United States Country United States (US) Registry ARIN Allocated Jan 04, 2002 Record Created Jan 04, 2002 Last Updated Sep 04, 2026 Status
active
WHOIS Server whois.arin.net AS Description TEAM-CYMRU - Team Cymru Inc., US Remarks -----BEGIN CERTIFICATE-----MIIDcTCCAlmgAwIBAgIUWowH3oStjkPJT5X4eLpuR2vsQ48wDQYJKoZIhvcNAQELBQAwSDELMAkGA1UEBhMCVVMxEDAOBgNVBAgMB0Zsb3JpZGExEjAQBgNVBAcMCUxha2UgTWFyeTETMBEGA1UECgwKVGVhbSBDeW1ydTAeFw0yNjA5MDQxMzU1MTRaFw0yNzA5MDQxMzU1MTRaMEgxCzAJBgNVBAYTAlVTMRAwDgYDVQQIDAdGbG9yaWRhMRIwEAYDVQQHDAlMYWtlI… Abuse Email [email protected] Abuse Phone +1-847-378-3300

IPv4 Prefixes

28 prefixes · 17,920 addresses · 7 top-level Routing data as of 2026-10-05 08:00 UTC

PrefixRangeAddresses
38.229.33.0/2438.229.33.0 – 38.229.33.255256
38.229.252.0/2438.229.252.0 – 38.229.252.255256
68.22.187.0/2468.22.187.0 – 68.22.187.255256
192.138.226.0/24192.138.226.0 – 192.138.226.255256
203.28.18.0/24203.28.18.0 – 203.28.18.255256
204.74.64.0/24204.74.64.0 – 204.74.64.255256
216.31.0.0/18216.31.0.0 – 216.31.63.25516,384
216.31.0.0/24216.31.0.0 – 216.31.0.255256
216.31.1.0/24216.31.1.0 – 216.31.1.255256
216.31.2.0/24216.31.2.0 – 216.31.2.255256
216.31.3.0/24216.31.3.0 – 216.31.3.255256
216.31.4.0/24216.31.4.0 – 216.31.4.255256
216.31.6.0/24216.31.6.0 – 216.31.6.255256
216.31.7.0/24216.31.7.0 – 216.31.7.255256
216.31.8.0/24216.31.8.0 – 216.31.8.255256
216.31.9.0/24216.31.9.0 – 216.31.9.255256
216.31.12.0/24216.31.12.0 – 216.31.12.255256
216.31.13.0/24216.31.13.0 – 216.31.13.255256
216.31.14.0/24216.31.14.0 – 216.31.14.255256
216.31.15.0/24216.31.15.0 – 216.31.15.255256
216.31.17.0/24216.31.17.0 – 216.31.17.255256
216.31.18.0/24216.31.18.0 – 216.31.18.255256
216.31.19.0/24216.31.19.0 – 216.31.19.255256
216.31.20.0/24216.31.20.0 – 216.31.20.255256
216.31.36.0/24216.31.36.0 – 216.31.36.255256
216.31.37.0/24216.31.37.0 – 216.31.37.255256
216.31.38.0/24216.31.38.0 – 216.31.38.255256
216.31.39.0/24216.31.39.0 – 216.31.39.255256

BGP Neighbours

8 unique neighbours · 7 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 (7)

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 Bandwidth3531,9001,340
AS2914NTT-DATA-2914 - NTT America, Inc.347672804
AS3257GTT-BACKBONE GTT Communications Inc.316772796
AS6939HURRICANE - Hurricane Electric LLC3166,6392,492
AS16509AMAZON-02 - Amazon.com, Inc.2623310
AS23352SERVERCENTRAL - DEFT.COM201718
AS286KPN GTT Communications Inc.1210

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
AS20144IMRS - ICANN4016

Raw RDAP Response

{
  "endAutnum": 23028,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-04-14T10:35:44-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2013-11-19T11:57:22-05:00"
            }
          ],
          "handle": "NOC13461-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/NOC13461-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/23028"
            },
            {
              "href": "https://whois.arin.net/rest/poc/NOC13461-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/23028"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "technical",
            "administrative",
            "abuse",
            "noc"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "901 International Parkway\nSuite 350\nLake Mary\nFL\n32746\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "NOC"
              ],
              [
                "org",
                {},
                "text",
                "Team Cymru"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-847-378-3300"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "fax"
                  ]
                },
                "text",
                "+1-407-878-7833"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2026-06-22T11:54:53-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2005-08-12T18:14:38-04:00"
        }
      ],
      "handle": "TEAMC-1",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/TEAMC-1",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/23028"
        },
        {
          "href": "https://whois.arin.net/rest/org/TEAMC-1",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/23028"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Team Cymru Inc."
          ],
          [
            "adr",
            {
              "label": "901 International Parkway\r\nSuite 350\nLake Mary\nFL\n32746\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2026-09-04T09:57:40-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2002-01-04T00:00:00-05:00"
    }
  ],
  "handle": "AS23028",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/23028",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/23028"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS23028",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/23028"
    }
  ],
  "name": "TEAM-CYMRU",
  "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/23028"
        }
      ],
      "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/23028"
        }
      ],
      "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"
  ],
  "remarks": [
    {
      "description": [
        "-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----"
      ],
      "title": "Registration Comments"
    }
  ],
  "startAutnum": 23028,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.