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AS27609

USC-University Hospital

ARIN US active Announced
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Organization
USC-University Hospital
USC-UNIVERSITY-HOSPITAL
Registered
Apr 09, 2003
23 years ago
IPv4 Prefixes
45
21,760 addresses
IPv6 Prefixes
0
BGP Neighbours
2
2 upstream/peer · 0 downstream

Registration

AS Number AS27609 AS Name USC-UNIVERSITY-HOSPITAL Organization USC-University Hospital Organization ID USCUN Address 1500 San Pablo Street, Los Angeles, CA, 90033, United States Country United States (US) Registry ARIN Allocated Apr 09, 2003 Record Created Apr 09, 2003 Last Updated May 23, 2014 Status
active
WHOIS Server whois.arin.net AS Description USC-UNIVERSITY-HOSPITAL - USC-University Hospital, US Remarks USC-University Hospital/USC-Norris Cancer Hospital Abuse Email [email protected] Abuse Phone +1-323-442-4444

IPv4 Prefixes

45 prefixes · 21,760 addresses Routing data as of 2026-10-08 00:00 UTC

63.0.0.0/8 · 29 prefixes · 7,424 addresses
PrefixRangeAddresses
63.247.0.0/2463.247.0.0 – 63.247.0.255256
63.247.1.0/2463.247.1.0 – 63.247.1.255256
63.247.2.0/2463.247.2.0 – 63.247.2.255256
63.247.3.0/2463.247.3.0 – 63.247.3.255256
63.247.4.0/2463.247.4.0 – 63.247.4.255256
63.247.5.0/2463.247.5.0 – 63.247.5.255256
63.247.6.0/2463.247.6.0 – 63.247.6.255256
63.247.7.0/2463.247.7.0 – 63.247.7.255256
63.247.8.0/2463.247.8.0 – 63.247.8.255256
63.247.9.0/2463.247.9.0 – 63.247.9.255256
63.247.10.0/2463.247.10.0 – 63.247.10.255256
63.247.11.0/2463.247.11.0 – 63.247.11.255256
63.247.13.0/2463.247.13.0 – 63.247.13.255256
63.247.14.0/2463.247.14.0 – 63.247.14.255256
63.247.15.0/2463.247.15.0 – 63.247.15.255256
63.247.16.0/2463.247.16.0 – 63.247.16.255256
63.247.17.0/2463.247.17.0 – 63.247.17.255256
63.247.18.0/2463.247.18.0 – 63.247.18.255256
63.247.19.0/2463.247.19.0 – 63.247.19.255256
63.247.20.0/2463.247.20.0 – 63.247.20.255256
63.247.21.0/2463.247.21.0 – 63.247.21.255256
63.247.22.0/2463.247.22.0 – 63.247.22.255256
63.247.23.0/2463.247.23.0 – 63.247.23.255256
63.247.24.0/2463.247.24.0 – 63.247.24.255256
63.247.25.0/2463.247.25.0 – 63.247.25.255256
63.247.26.0/2463.247.26.0 – 63.247.26.255256
63.247.27.0/2463.247.27.0 – 63.247.27.255256
63.247.28.0/2463.247.28.0 – 63.247.28.255256
63.247.29.0/2463.247.29.0 – 63.247.29.255256
206.0.0.0/8 · 3 prefixes · 3,072 addresses
PrefixRangeAddresses
206.117.132.0/22206.117.132.0 – 206.117.135.2551,024
206.117.136.0/22206.117.136.0 – 206.117.139.2551,024
206.117.144.0/22206.117.144.0 – 206.117.147.2551,024
207.0.0.0/8 · 13 prefixes · 11,264 addresses
PrefixRangeAddresses
207.151.0.0/20207.151.0.0 – 207.151.15.2554,096
207.151.18.0/24207.151.18.0 – 207.151.18.255256
207.151.19.0/24207.151.19.0 – 207.151.19.255256
207.151.20.0/22207.151.20.0 – 207.151.23.2551,024
207.151.24.0/22207.151.24.0 – 207.151.27.2551,024
207.151.28.0/23207.151.28.0 – 207.151.29.255512
207.151.39.0/24207.151.39.0 – 207.151.39.255256
207.151.40.0/22207.151.40.0 – 207.151.43.2551,024
207.151.44.0/22207.151.44.0 – 207.151.47.2551,024
207.151.48.0/24207.151.48.0 – 207.151.48.255256
207.151.50.0/24207.151.50.0 – 207.151.50.255256
207.151.83.0/24207.151.83.0 – 207.151.83.255256
207.151.84.0/22207.151.84.0 – 207.151.87.2551,024

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

2 unique neighbours · 2 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 (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
AS226LOS-NETTOS-AS - Los Nettos1809,9450
AS46887CROWNCASTLE-AS46887 - Crown Castle Fiber LLC775,0850

Raw RDAP Response

{
  "endAutnum": 27609,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-02-05T10:04:56-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2013-02-22T18:14:30-05:00"
            }
          ],
          "handle": "NOC13038-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/NOC13038-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/27609"
            },
            {
              "href": "https://whois.arin.net/rest/poc/NOC13038-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/27609"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "remarks": [
            {
              "description": [
                "http://www.keckmedicine.org/"
              ],
              "title": "Registration Comments"
            }
          ],
          "roles": [
            "administrative",
            "technical",
            "abuse",
            "noc"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "1500 San Pablo Street\nLos Angeles\nCA\n90033\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Network Operations Center"
              ],
              [
                "org",
                {},
                "text",
                "USC-University Hospital"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-323-442-4444"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2018-03-02T20:27:46-05:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2003-02-19T15:33:27-05:00"
        }
      ],
      "handle": "USCUN",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/USCUN",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/27609"
        },
        {
          "href": "https://whois.arin.net/rest/org/USCUN",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/27609"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "remarks": [
        {
          "description": [
            "http://www.keckmedicine.org/"
          ],
          "title": "Registration Comments"
        }
      ],
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "USC-University Hospital"
          ],
          [
            "adr",
            {
              "label": "1500 San Pablo Street\nLos Angeles\nCA\n90033\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    },
    {
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2026-02-05T10:04:56-05:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2013-02-22T18:14:30-05:00"
        }
      ],
      "handle": "NOC13038-ARIN",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/NOC13038-ARIN",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/27609"
        },
        {
          "href": "https://whois.arin.net/rest/poc/NOC13038-ARIN",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/27609"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "remarks": [
        {
          "description": [
            "http://www.keckmedicine.org/"
          ],
          "title": "Registration Comments"
        }
      ],
      "roles": [
        "abuse",
        "noc",
        "technical"
      ],
      "status": [
        "validated"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "adr",
            {
              "label": "1500 San Pablo Street\nLos Angeles\nCA\n90033\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "fn",
            {},
            "text",
            "Network Operations Center"
          ],
          [
            "org",
            {},
            "text",
            "USC-University Hospital"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "tel",
            {
              "type": [
                "work",
                "voice"
              ]
            },
            "text",
            "+1-323-442-4444"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2014-05-23T15:12:00-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2003-04-09T18:45:53-04:00"
    }
  ],
  "handle": "AS27609",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/27609",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/27609"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS27609",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/27609"
    }
  ],
  "name": "USC-UNIVERSITY-HOSPITAL",
  "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/27609"
        }
      ],
      "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/27609"
        }
      ],
      "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": [
        "USC-University Hospital/USC-Norris Cancer Hospital"
      ],
      "title": "Registration Comments"
    }
  ],
  "startAutnum": 27609,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.