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158.121.0.43

Education Data retrieved at

Network

ASN

AS1968 Registry (RIR): ARIN 158.121.0.0/16

IP Range

158.121.0.0 – 158.121.255.255 Range: 158.121.0.0/16 Detected.

Company

UMASSNET

Registrant

University of Massachusetts at Boston UMASSBOSTON2 Using networksdb.io for network lookups.

Hostname

Not available.

AS Domain

umass.edu Using host.io for pre-visualize domains.

Type

Education

Handle

NET-158-121-0-0-1

Registered

1992-02-28

Last Changed

2021-12-14

View raw RDAP

{
  "arin_originas0_originautnums": [],
  "cidr0_cidrs": [
    {
      "v4prefix": "158.121.0.0",
      "length": 16
    }
  ],
  "endAddress": "158.121.255.255",
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2024-07-24T08:43:02-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2006-06-07T11:09:16-04:00"
            }
          ],
          "handle": "UNOC1-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/UNOC1-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/ip/158.121.0.43"
            },
            {
              "href": "https://whois.arin.net/rest/poc/UNOC1-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/ip/158.121.0.43"
            }
          ],
          "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 2025-07-24"
              ],
              "title": "Unvalidated POC"
            }
          ],
          "roles": [
            "technical",
            "abuse",
            "administrative",
            "noc"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "IT Communication and Infrastructure Services\r\n100 Morrissey Bvld.\nBoston\nMA\n02125\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "UMB Network Operations Center"
              ],
              [
                "org",
                {},
                "text",
                "University Of Massachusetts at Boston"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-617-287-5236"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2012-03-13T18:27:44-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "1990-03-26T00:00:00-05:00"
        }
      ],
      "handle": "UMAB",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/UMAB",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/ip/158.121.0.43"
        },
        {
          "href": "https://whois.arin.net/rest/org/UMAB",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/ip/158.121.0.43"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "University of Massachusetts at Boston"
          ],
          [
            "adr",
            {
              "label": "IT Communication and Infrastructure Services\r\n100 Morrissey Bvld.\nBoston\nMA\n02125\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2021-12-14T20:28:33-05:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "1992-02-28T00:00:00-05:00"
    }
  ],
  "handle": "NET-158-121-0-0-1",
  "ipVersion": "v4",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/ip/158.121.0.0",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/ip/158.121.0.43"
    },
    {
      "href": "https://whois.arin.net/rest/net/NET-158-121-0-0-1",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/ip/158.121.0.43"
    }
  ],
  "name": "UMASSBOSTON2",
  "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/158.121.0.43"
        }
      ],
      "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/158.121.0.43"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    },
    {
      "description": [
        "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
      ],
      "title": "Copyright Notice"
    }
  ],
  "objectClassName": "ip network",
  "parentHandle": "NET-158-0-0-0-0",
  "port43": "whois.arin.net",
  "rdapConformance": [
    "nro_rdap_profile_0",
    "rdap_level_0",
    "cidr0",
    "arin_originas0"
  ],
  "startAddress": "158.121.0.0",
  "status": [
    "active"
  ],
  "type": "DIRECT ALLOCATION"
}

Security

No security threats detected for this IP.