Organization
University of California, Davis
UCDAVIS-CORE
Registered
—
IPv4 Prefixes
5
229,632 addresses
IPv6 Prefixes
3
65,536 × /48
BGP Neighbours
4
3 upstream/peer · 1 downstream
Registration
AS Number AS6192 AS Name UCDAVIS-CORE Organization University of California, Davis Organization ID UCD-1-Z Address One Shields Avenue, Davis, CA, 95616, United States Country United States (US) Registry ARIN Last Updated Sep 01, 2026 Status
active
WHOIS Server whois.arin.net AS Description UCDAVIS-CORE - University of California, Davis, US Abuse Email [email protected] Abuse Phone +1-530-754-4357 IPv4 Prefixes
5 prefixes · 229,632 addresses Routing data as of 2026-10-07 08:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 128.120.0.0/16 | 128.120.0.0 – 128.120.255.255 | 65,536 |
| 152.79.0.0/16 | 152.79.0.0 – 152.79.255.255 | 65,536 |
| 168.150.0.0/17 | 168.150.0.0 – 168.150.127.255 | 32,768 |
| 169.237.0.0/16 | 169.237.0.0 – 169.237.255.255 | 65,536 |
| 192.82.111.0/24 | 192.82.111.0 – 192.82.111.255 | 256 |
IPv6 Prefixes
3 prefixes · 65,536 × /48 · 1 top-level Routing data as of 2026-10-07 08:00 UTC
| Prefix | Addresses |
|---|---|
| 2607:f810:: | 296 |
| 2607:f810:330:: | 284 |
| 2607:f810:f30:: | 284 |
BGP Neighbours
4 unique neighbours · 3 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. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams). Upstream & peer side (3)
Downstream side (1)
AS Name AS paths IPv4 sightings IPv6 sightings AS400452 UC-DAVIS-HEALTH - University of California Davis Medical Center 259 333 0
Raw RDAP Response
{
"endAutnum": 6192,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-28T16:17:58-04:00"
},
{
"eventAction": "registration",
"eventDate": "2026-08-28T16:17:58-04:00"
}
],
"handle": "ZHGHE-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ZHGHE-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6192"
},
{
"href": "https://whois.arin.net/rest/poc/ZHGHE-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6192"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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],
"status": [
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],
"vcardArray": [
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[
[
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{},
"text",
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],
[
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"text",
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],
[
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{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-10-05T14:20:49-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-09-26T14:52:00-04:00"
}
],
"handle": "YOOEV-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/YOOEV-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6192"
},
{
"href": "https://whois.arin.net/rest/poc/YOOEV-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6192"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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],
"status": [
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],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-03-02T17:27:39-05:00"
},
{
"eventAction": "registration",
"eventDate": "2006-10-19T15:30:12-04:00"
}
],
"handle": "UCD-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UCD-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6192"
},
{
"href": "https://whois.arin.net/rest/poc/UCD-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6192"
}
],
"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 2026-03-02"
],
"title": "Unvalidated POC"
}
],
"roles": [
"noc"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
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},
"text",
[
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""
]
],
[
"fn",
{},
"text",
"U C Davis"
],
[
"org",
{},
"text",
"University of California, Davis"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-530-752-7656"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-03-02T17:27:58-05:00"
},
{
"eventAction": "registration",
"eventDate": "2006-10-18T15:18:07-04:00"
}
],
"handle": "UCDA-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UCDA-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6192"
},
{
"href": "https://whois.arin.net/rest/poc/UCDA-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6192"
}
],
"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 2026-03-02"
],
"title": "Unvalidated POC"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "One Shields Ave\nDavis\nCA\n95616\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"U C Davis Abuse"
],
[
"org",
{},
"text",
"University of California, Davis"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-530-754-4357"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-18T12:25:13-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-09-18T12:58:29-04:00"
}
],
"handle": "KAWAG1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/KAWAG1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6192"
},
{
"href": "https://whois.arin.net/rest/poc/KAWAG1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6192"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-01T16:16:24-04:00"
},
{
"eventAction": "registration",
"eventDate": "2010-01-04T12:46:27-05:00"
}
],
"handle": "UCD-1-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UCD-1-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6192"
},
{
"href": "https://whois.arin.net/rest/org/UCD-1-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6192"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"University of California, Davis"
],
[
"adr",
{
"label": "One Shields Avenue\nDavis\nCA\n95616\nUnited States"
},
"text",
[
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"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-28T16:17:58-04:00"
},
{
"eventAction": "registration",
"eventDate": "2026-08-28T16:17:58-04:00"
}
],
"handle": "ZHGHE-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ZHGHE-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6192"
},
{
"href": "https://whois.arin.net/rest/poc/ZHGHE-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6192"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-03-02T17:27:39-05:00"
},
{
"eventAction": "registration",
"eventDate": "2006-10-19T15:30:12-04:00"
}
],
"handle": "UCD-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UCD-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6192"
},
{
"href": "https://whois.arin.net/rest/poc/UCD-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6192"
}
],
"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 2026-03-02"
],
"title": "Unvalidated POC"
}
],
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "One Shields Ave\nDavis\nCA\n95616\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"U C Davis"
],
[
"org",
{},
"text",
"University of California, Davis"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-530-752-7656"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-01T16:15:33-04:00"
}
],
"handle": "AS6192",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/6192",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6192"
},
{
"href": "https://whois.arin.net/rest/asn/AS6192",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6192"
}
],
"name": "UCDAVIS-CORE",
"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/6192"
}
],
"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/6192"
}
],
"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"
],
"startAutnum": 6192,
"status": [
"active"
]
} Contact details of private individuals are redacted.