AS14041 University Corporation for Atmospheric Research

AS-FRGP - University Corporation for Atmospheric Research · registered in the United States

IPv4 addresses153,60023 prefixes · 0.005% of announced IPv4

Rank in United States#399largest network in US by IPv4 space, of 18,338 · 0.01% of US

Rank worldwide#1,300of 79,396 networks with IPv4

IPv6255 x /488 prefixes

CountryUnited States18,679 ASNs registered there

Open AS14041 in ASN lookup Look up an IP in this network (129.19.64.1) All networks in United States

IPv4 prefixes

All 23 prefixes, in address order.

129.19.64.0/20
129.19.80.0/21
129.19.88.0/22
129.19.92.0/23
129.19.94.0/23
129.19.96.0/19
129.19.148.0/23
129.19.150.0/24
129.19.153.0/24
129.19.155.0/24
129.19.157.0/24
129.19.158.0/23
129.19.160.0/23
129.19.162.0/24
129.19.164.0/23
129.19.166.0/23
129.19.168.0/22
129.19.172.0/23
129.19.175.0/24
130.253.0.0/16
161.98.0.0/16
192.43.217.0/24
198.59.2.0/24

IPv6 prefixes

All 8 prefixes.

2001:468:500::/48
2001:468:502::/47
2001:468:504::/46
2001:468:508::/45
2001:468:510::/44
2001:468:520::/43
2001:468:540::/42
2001:468:580::/41

Other ASNs named University Corporation for Atmospheric Research

1 other network uses the same organisation name; together with AS14041 they announce 219,904 IPv4 addresses.

ASNNameIPv4 addresses

AS194UCAR-AS - University Corporation for Atmospheric Research US66,304

Similar-sized networks in United States

ASNNameIPv4 addresses

AS1767#396 ILIGHT-NET - Indiana Higher Education Telecommunication System (IHETS)155,126

AS8796#397 FD-298-8796 - FASTNET DATA INC154,880

AS195#398 SDSC-AS - San Diego Supercomputer Center154,447

AS399#400 AFCONC-BLOCK1-AS - Air Force Systems Networking153,600

AS22709#401 NSTELCO - North State Telephone, LLC152,832

AS30633#402 LEASEWEB-USA-WDC - Leaseweb USA, Inc.152,064

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources