AS11773 The University Of Texas M.D. Anderson Cancer Center

UTMDACC - The University Of Texas M.D. Anderson Cancer Center · registered in the United States

IPv4 addresses65,79215 prefixes · 0.002% of announced IPv4

Rank in United States#962largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,810of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS11773 in ASN lookup Look up an IP in this network (143.111.0.1) All networks in United States

IPv4 prefixes

All 15 prefixes, in address order.

143.111.0.0/22
143.111.4.0/23
143.111.6.0/23
143.111.8.0/21
143.111.16.0/20
143.111.32.0/19
143.111.64.0/20
143.111.80.0/22
143.111.84.0/23
143.111.86.0/24
143.111.87.0/24
143.111.88.0/21
143.111.96.0/19
143.111.128.0/17
192.108.242.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS7939#959 UNIVCENTFLA - University of Central Florida65,792

AS10349#960 TULANE - Tulane University65,792

AS10952#961 ECU-AS - East Carolina University65,792

AS11870#963 ALTICOR-INC - ALTICOR INC65,792

AS13513#964 ALFRED-UNIVERSITY - Alfred University65,792

AS14223#965 NYSDOH - New York State Department of Health65,792

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