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72.57.0.37

ISP Data retrieved at

Network

ASN

AS394056 Registry (RIR): ARIN

IP Range

72.57.0.0 – 72.57.31.255 Range: 72.57.0.0/19 Detected.

Company

BIF IV

Network

BIIOL Using networksdb.io for network lookups.

Hostname

72-57-0-37.sandiego.intrepidfiber.us

AS Domain

intrepidfiber.com Using host.io for pre-visualize domains.

Type

ISP

Handle

NET-72-57-0-0-1

Registered

2025-07-30

Last Changed

2026-02-24

View raw RDAP

{
  "arin_originas0_originautnums": [],
  "cidr0_cidrs": [
    {
      "v4prefix": "72.57.0.0",
      "length": 19
    }
  ],
  "endAddress": "72.57.31.255",
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-01-22T10:02:51-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2023-11-17T15:17:52-05:00"
            }
          ],
          "handle": "BIAA-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/BIAA-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/ip/72.57.0.37"
            },
            {
              "href": "https://whois.arin.net/rest/poc/BIAA-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/ip/72.57.0.37"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "technical",
            "routing",
            "abuse",
            "noc",
            "administrative",
            "dns"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "11001 W 120th Ave #315\nBroomfield\nCO\n80021\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "BIF IV ARIN Admin"
              ],
              [
                "org",
                {},
                "text",
                "Intrepid Fiber Networks"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-720-680-3200"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2023-12-12T13:44:30-05:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2022-09-08T10:52:50-04:00"
        }
      ],
      "handle": "BIIOL",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/BIIOL",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/ip/72.57.0.37"
        },
        {
          "href": "https://whois.arin.net/rest/org/BIIOL",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/ip/72.57.0.37"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "BIF IV"
          ],
          [
            "adr",
            {
              "label": "251 Little Falls Drive\nWilmington\nDE\n19808\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2026-02-24T12:34:19-05:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2025-07-30T07:10:12-04:00"
    }
  ],
  "handle": "NET-72-57-0-0-1",
  "ipVersion": "v4",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/ip/72.57.0.0",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/ip/72.57.0.37"
    },
    {
      "href": "https://whois.arin.net/rest/net/NET-72-57-0-0-1",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/ip/72.57.0.37"
    }
  ],
  "name": "BIIOL",
  "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/ip/72.57.0.37"
        }
      ],
      "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/ip/72.57.0.37"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    },
    {
      "description": [
        "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
      ],
      "title": "Copyright Notice"
    }
  ],
  "objectClassName": "ip network",
  "parentHandle": "NET-72-0-0-0-0",
  "port43": "whois.arin.net",
  "rdapConformance": [
    "nro_rdap_profile_0",
    "rdap_level_0",
    "cidr0",
    "arin_originas0"
  ],
  "remarks": [
    {
      "description": [
        "-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----"
      ],
      "title": "Registration Comments"
    }
  ],
  "startAddress": "72.57.0.0",
  "status": [
    "active"
  ],
  "type": "DIRECT ALLOCATION"
}

Security

No security threats detected for this IP.