AS194 University Corporation for Atmospheric Research

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

IPv4 addresses66,30410 prefixes · 0.002% of announced IPv4

Rank in United States#884largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,676of 79,396 networks with IPv4

IPv6256 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS194 in ASN lookup Look up an IP in this network (128.117.0.1) All networks in United States

IPv4 prefixes

All 10 prefixes, in address order.

128.117.0.0/17
128.117.128.0/18
128.117.192.0/20
128.117.208.0/22
128.117.212.0/22
128.117.216.0/21
128.117.224.0/19
129.19.156.0/24
192.43.244.0/24
192.52.106.0/24

IPv6 prefixes

All 1 prefix.

2620:117:2000::/40

Other ASNs named University Corporation for Atmospheric Research

1 other network uses the same organisation name; together with AS194 they announce 219,904 IPv4 addresses.

ASNNameIPv4 addresses

AS14041AS-FRGP - University Corporation for Atmospheric Research US153,600

Similar-sized networks in United States

ASNNameIPv4 addresses

AS32666#881 CWRU-AS-1 - Case Western Reserve University66,304

AS62989#882 IUP - Indiana University of Pennsylvania66,304

AS398537#883 KUTZTOWN-01 - Kutztown University66,304

AS11872#885 SYRACUSE-UNIVERSITY - Syracuse University66,304

AS8122#886 DQNAS - Duquesne University66,304

AS10364#887 UAHNET - University of Alabama in Huntsville66,304

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