AS16519 University of Colorado Denver

CUDENVER - University of Colorado Denver · registered in the United States

IPv4 addresses131,0722 prefixes · 0.004% of announced IPv4

Rank in United States#523largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,570of 79,396 networks with IPv4

IPv6256 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS16519 in ASN lookup Look up an IP in this network (132.194.0.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

132.194.0.0/16
140.226.0.0/16

IPv6 prefixes

All 1 prefix.

2620:123:5000::/40

Similar-sized networks in United States

ASNNameIPv4 addresses

AS368#520 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)131,072

AS369#521 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)131,072

AS1530#522 DNIC-ASBLK-01529-01530 - Headquarters, USAISC131,072

AS14702#524 INL-ASN2 - Idaho National Laboratory131,072

AS33442#525 ZEBRA-TECHNOLOGIES-BGP-AS-NUMBER - Zebra Technologies Corporation131,072

AS48#526 DNIC-AS-00048 - Navy Network Information Center (NNIC)131,072

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