Organization
University of Rochester
UR
Registered
Jul 27, 1984
42 years ago
IPv4 Prefixes
3
66,048 addresses
IPv6 Prefixes
1
256 × /48
BGP Neighbours
4
4 upstream/peer · 0 downstream
Registration
AS Number AS20 AS Name UR Organization University of Rochester Organization ID UNIVER-40-Z Address University IT, 1630 Lond Pond Road, Rochester, NY, 14626, United States Country United States (US) Registry ARIN Allocated Jul 27, 1984 Record Created Jul 27, 1984 Last Updated Oct 01, 2019 Status
active
WHOIS Server whois.arin.net AS Description UR - University of Rochester, US Abuse Email [email protected] Abuse Phone +1-585-506-7390 IPv4 Prefixes
3 prefixes · 66,048 addresses Routing data as of 2026-10-11 00:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 128.151.0.0/16 | 128.151.0.0 – 128.151.255.255 | 65,536 |
| 192.5.53.0/24 | 192.5.53.0 – 192.5.53.255 | 256 |
| 199.89.214.0/24 | 199.89.214.0 – 199.89.214.255 | 256 |
IPv6 Prefixes
1 prefix · 256 × /48 Routing data as of 2026-10-11 00:00 UTC
| Prefix | Addresses |
|---|---|
| 2620:107:a000:: | 288 |
BGP Neighbours
4 unique neighbours · 4 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. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Upstream & peer side (4)
Raw RDAP Response
{
"endAutnum": 20,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-23T19:41:43-04:00"
},
{
"eventAction": "registration",
"eventDate": "2019-09-27T14:53:25-04:00"
}
],
"handle": "FERNA540-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/FERNA540-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/20"
},
{
"href": "https://whois.arin.net/rest/poc/FERNA540-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/20"
}
],
"objectClassName": "entity",
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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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{},
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[
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[
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[
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{
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]
},
"text",
"+1-585-506-7390"
],
[
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},
"text",
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},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-10T12:55:41-04:00"
},
{
"eventAction": "registration",
"eventDate": "2004-12-22T11:28:58-05:00"
}
],
"handle": "URAC1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/URAC1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/20"
},
{
"href": "https://whois.arin.net/rest/poc/URAC1-ARIN",
"rel": "alternate",
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"value": "https://rdap.arin.net/registry/autnum/20"
}
],
"objectClassName": "entity",
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"roles": [
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"status": [
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[
[
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{},
"text",
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[
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},
"text",
[
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],
[
"fn",
{},
"text",
"University of Rochester Abuse Contact"
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[
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{},
"text",
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[
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{},
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[
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{},
"text",
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[
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},
"text",
"+1-585-275-6550"
],
[
"tel",
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},
{
"events": [
{
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"eventDate": "2026-06-10T12:58:19-04:00"
},
{
"eventAction": "registration",
"eventDate": "2019-07-26T11:19:30-04:00"
}
],
"handle": "DRB62-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DRB62-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/20"
},
{
"href": "https://whois.arin.net/rest/poc/DRB62-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/20"
}
],
"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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{},
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],
[
"adr",
{
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},
"text",
[
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],
[
"fn",
{},
"text",
"Douglas R Bentley"
],
[
"n",
{},
"text",
[
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""
]
],
[
"kind",
{},
"text",
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],
[
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{},
"text",
"[email protected]"
],
[
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{
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]
},
"text",
"+1-585-275-6550"
],
[
"tel",
{
"type": [
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]
},
"text",
"+1-585-315-8730"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-10T12:54:55-04:00"
},
{
"eventAction": "registration",
"eventDate": "2004-12-22T11:28:58-05:00"
}
],
"handle": "URTC-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/URTC-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/20"
},
{
"href": "https://whois.arin.net/rest/poc/URTC-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/20"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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"technical",
"routing",
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],
"status": [
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],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
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],
[
"adr",
{
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},
"text",
[
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]
],
[
"fn",
{},
"text",
"University of Rochester Technical Contact"
],
[
"org",
{},
"text",
"University of Rochester"
],
[
"kind",
{},
"text",
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],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
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]
},
"text",
"+1-585-275-0090"
],
[
"tel",
{
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]
},
"text",
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},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-10T12:56:08-04:00"
},
{
"eventAction": "registration",
"eventDate": "2004-12-22T11:28:58-05:00"
}
],
"handle": "URAC-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/URAC-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/20"
},
{
"href": "https://whois.arin.net/rest/poc/URAC-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/20"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Please report network abuse complaints to",
"[email protected]"
],
"title": "Registration Comments"
}
],
"roles": [
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],
"status": [
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],
"vcardArray": [
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[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1630 Lond Pond Road\nRochester\nNY\n14626\nUnited States"
},
"text",
[
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]
],
[
"fn",
{},
"text",
"University of Rochester Admin Contact"
],
[
"org",
{},
"text",
"University of Rochester"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
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]
},
"text",
"+1-585-275-6550"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-585-275-0090"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-10T12:58:58-04:00"
},
{
"eventAction": "registration",
"eventDate": "2009-03-30T14:52:15-04:00"
}
],
"handle": "UNIVER-40-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UNIVER-40-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/20"
},
{
"href": "https://whois.arin.net/rest/org/UNIVER-40-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/20"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Please report network abuse complaints to\r",
"[email protected]"
],
"title": "Registration Comments"
}
],
"roles": [
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],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"University of Rochester"
],
[
"adr",
{
"label": "University IT\n1630 Lond Pond Road\nRochester\nNY\n14626\nUnited States"
},
"text",
[
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"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-23T19:41:43-04:00"
},
{
"eventAction": "registration",
"eventDate": "2019-09-27T14:53:25-04:00"
}
],
"handle": "FERNA540-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/FERNA540-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/20"
},
{
"href": "https://whois.arin.net/rest/poc/FERNA540-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/20"
}
],
"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": "2026-06-10T12:54:55-04:00"
},
{
"eventAction": "registration",
"eventDate": "2004-12-22T11:28:58-05:00"
}
],
"handle": "URTC-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/URTC-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/20"
},
{
"href": "https://whois.arin.net/rest/poc/URTC-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/20"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1630 Lond Pond Road\nRochester\nNY\n14626\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"University of Rochester Technical Contact"
],
[
"org",
{},
"text",
"University of Rochester"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-585-275-0090"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-585-275-6550"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2019-10-01T12:57:33-04:00"
},
{
"eventAction": "registration",
"eventDate": "1984-07-27T00:00:00-04:00"
}
],
"handle": "AS20",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/20",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/20"
},
{
"href": "https://whois.arin.net/rest/asn/AS20",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/20"
}
],
"name": "UR",
"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/20"
}
],
"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/20"
}
],
"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": 20,
"status": [
"active"
]
} Contact details of private individuals are redacted.