AS22163 Texas A&M University System Health Science Center

TAMHSC - Texas A&M University System Health Science Center · registered in the United States

IPv4 addresses12,2882 prefixes · <0.001% of announced IPv4

Rank in United States#2,713largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#8,229of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS22163 in ASN lookup Look up an IP in this network (66.64.64.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

66.64.64.0/19
209.21.112.0/20

Similar-sized networks in United States

ASNNameIPv4 addresses

AS20098#2710 BCBS-AL - Blue Cross and Blue Shield of Alabama12,288

AS20436#2711 PGTC-COM - Prairie Grove Telephone Co.12,288

AS21730#2712 RRV-NET - Halstad Telephone Company12,288

AS22739#2714 BYU-H - Brigham Young University Hawaii12,288

AS22919#2715 PCCNET - Portland Community College12,288

AS25606#2716 CPVCOM - Cooperative Communications Inc.12,288

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