AS14041
University Corporation for Atmospheric Research
Registration
IPv4 Prefixes
5 prefixes · 197,120 addresses Routing data as of 2026-10-09 00:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 129.19.0.0/16 | 129.19.0.0 – 129.19.255.255 | 65,536 |
| 130.253.0.0/16 | 130.253.0.0 – 130.253.255.255 | 65,536 |
| 161.98.0.0/16 | 161.98.0.0 – 161.98.255.255 | 65,536 |
| 192.43.217.0/24 | 192.43.217.0 – 192.43.217.255 | 256 |
| 198.59.2.0/24 | 198.59.2.0 – 198.59.2.255 | 256 |
IPv6 Prefixes
1 prefix · 1 × /48 Routing data as of 2026-10-09 00:00 UTC
| Prefix | Addresses |
|---|---|
| 2001:468:500:: | 280 |
BGP Neighbours
36 unique neighbours · 9 upstream/peer · 25 downstream · 2 collector-only. 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). Networks seen to the left of this AS only when they peer directly with a RIPE RIS route collector, so the adjacency may be an artefact of that peering; many of them also appear on the downstream side. Upstream & peer side (9)
AS Name AS paths IPv4 sightings IPv6 sightings AS1299 TWELVE99 Arelion Sweden AB 3,993 23,773 395 AS3356 LEVEL3 - Level 3 Parent, LLC 1,126 3,260 1,393 AS6939 HURRICANE - Hurricane Electric LLC 1,083 3,756 1,362 AS11164 INTERNET2-I2PX - Internet2 635 5,178 128 AS11537 INTERNET2-RESEARCH-EDU - Internet2 269 1,189 59 AS293 ESNET - ESnet 35 114 8 AS32621 TCV-511 - Twin City VoIP, Inc. 32 138 17 AS2153 CENIC-2153 - CENIC 1 0 1 AS64289 MACARNE - Macarne.com 1 1 0 Downstream side (25)
AS Name AS paths IPv4 sightings IPv6 sightings AS11956 NOAA-XWAVE - National Oceanic and Atmospheric Administration 1,372 15,933 2,231 AS12145 COLORADOSTATEUNIV - Colorado State University 1,049 2,062 0 AS194 UCAR-AS - University Corporation for Atmospheric Research 472 1,353 337 AS14977 STATE-OF-WYOMING-ASN - State of Wyoming Department A&I 315 622 337 AS62671 UNIVERSITY-OF-COLORADO-SYSTEM - ECS-Infrastructure 269 1,006 0 AS17207 COLOR-COLL - Colorado College 261 3,686 0 AS65 AF-RASN-65 - Air Force Systems Networking 260 670 0 AS2902 WN-WY-AS - University of Wyoming 258 1,342 0 AS26661 JCPS-ASN - Jeffco Public Schools 257 1,008 0 AS36081 STATE-OF-COLORADO-MNT-NETWORK - The Governor's Office of Information Technology 257 1,342 0 AS36691 CSUP-AS - Colorado State University 257 339 0 AS402584 MSUDENVER - Metropolitan 257 336 0 AS36704 CSM-AS - Colorado School of Mines 256 336 0 AS396425 UCCS-UNIVERSITY-OF-COLORADO-COLORADO-SPRINGS - University of Colorado, Colorado Springs 256 336 0 AS401317 BPLD - Boulder Public Library District 235 296 0 AS104 COLORADO-AS - University of Colorado at Boulder 195 4,187 47 AS16519 CUDENVER - University of Colorado Denver 123 338 38 AS399193 NAVAJO-TECHNICAL-UNIVERSITY - Navajotech 106 137 0 AS397315 REGION10-LEAP - Region 10 League for Economic Assistance and Planning, Inc. 93 246 0 AS15295 UNC-1388600-ASN - University of Northern Colorado 85 101 0 AS11686 ZAYO-ENA-11686 - Zayo Bandwidth 43 54 12 AS393869 CMC - COLORADO MOUNTAIN COLLEGE 35 76 38 AS30136 AD12 - Adams 12 31 121 0 AS39990 BCG - Boulder County Government 14 16 0 AS396212 AIMS-COMMUNITY-COLLEGE - Aims Community College 6 6 0 Collector-only (2)
Raw RDAP Response
{
"endAutnum": 14041,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-27T13:43:32-04:00"
},
{
"eventAction": "registration",
"eventDate": "2018-02-20T12:22:27-05:00"
}
],
"handle": "MEEHL5-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MEEHL5-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14041"
},
{
"href": "https://whois.arin.net/rest/poc/MEEHL5-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14041"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-26T11:08:09-04:00"
},
{
"eventAction": "registration",
"eventDate": "2022-07-22T15:35:42-04:00"
}
],
"handle": "HERNA1265-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HERNA1265-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14041"
},
{
"href": "https://whois.arin.net/rest/poc/HERNA1265-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14041"
}
],
"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": "2026-03-30T17:35:16-04:00"
},
{
"eventAction": "registration",
"eventDate": "2022-11-07T11:31:48-05:00"
}
],
"handle": "ADLER49-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ADLER49-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14041"
},
{
"href": "https://whois.arin.net/rest/poc/ADLER49-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14041"
}
],
"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": "2026-03-03T10:52:00-05:00"
},
{
"eventAction": "registration",
"eventDate": "2002-08-28T19:30:07-04:00"
}
],
"handle": "ABUSE18-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE18-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14041"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE18-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14041"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1850 Table Mesa Drive\nBoulder\nCO\n80305\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Abuse"
],
[
"org",
{},
"text",
"National Center for Atmospheric Research"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-307-996-4300"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-04-30T18:41:16-04:00"
},
{
"eventAction": "registration",
"eventDate": "1999-12-10T12:14:21-05:00"
}
],
"handle": "ZN10-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ZN10-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14041"
},
{
"href": "https://whois.arin.net/rest/poc/ZN10-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14041"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1850 Table Mesa Dr.\nBoulder\nCO\n80305\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"National Center for Atmospheric Research"
],
[
"org",
{},
"text",
"University Corporation for Atmospheric Research"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-307-996-4300"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-11T15:56:34-04:00"
},
{
"eventAction": "registration",
"eventDate": "1988-05-26T00:00:00-04:00"
}
],
"handle": "UCAR-1",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UCAR-1",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14041"
},
{
"href": "https://whois.arin.net/rest/org/UCAR-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14041"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"University Corporation for Atmospheric Research"
],
[
"adr",
{
"label": "3090 Center Green Drive\nBoulder\nCO\n80301\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-01T14:58:15-04:00"
},
{
"eventAction": "registration",
"eventDate": "1999-10-07T00:00:00-04:00"
}
],
"handle": "AS14041",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/14041",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14041"
},
{
"href": "https://whois.arin.net/rest/asn/AS14041",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14041"
}
],
"name": "FRGP",
"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/14041"
}
],
"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/14041"
}
],
"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": 14041,
"status": [
"active"
]
} Contact details of private individuals are redacted.