AS14373 University of Texas Medical Branch

UTMB - University of Texas Medical Branch · registered in the United States

IPv4 addresses65,53628 prefixes · 0.002% of announced IPv4

Rank in United States#1,144largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,157of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS14373 in ASN lookup Look up an IP in this network (129.109.0.1) All networks in United States

IPv4 prefixes

All 28 prefixes, in address order.

129.109.0.0/19
129.109.32.0/21
129.109.40.0/22
129.109.44.0/24
129.109.45.0/24
129.109.46.0/23
129.109.48.0/20
129.109.64.0/18
129.109.128.0/20
129.109.144.0/21
129.109.152.0/21
129.109.160.0/19
129.109.192.0/20
129.109.208.0/21
129.109.216.0/22
129.109.220.0/23
129.109.222.0/24
129.109.223.0/24
129.109.224.0/21
129.109.232.0/22
129.109.236.0/23
129.109.238.0/24
129.109.239.0/24
129.109.240.0/21
129.109.248.0/23
129.109.250.0/24
129.109.251.0/24
129.109.252.0/22

Similar-sized networks in United States

ASNNameIPv4 addresses

AS14048#1141 MEMPHIS-EDU - The University of Memphis65,536

AS14169#1142 VMI-ASN - Virginia Military Institute65,536

AS14348#1143 URI-AS - University of Rhode Island65,536

AS14433#1145 SUNY-OSWEGO-ASN - State University of New York - Oswego65,536

AS14443#1146 BFS-49-14443 - Broadridge Financial Solutions, Inc.65,536

AS14486#1147 OXY-AS - Occidental College65,536

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