AS7872 United States Antarctic Program

USAP-ASN - United States Antarctic Program · registered in the United States

IPv4 addresses68,3529 prefixes · 0.002% of announced IPv4

Rank in United States#817largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,511of 79,396 networks with IPv4

IPv616 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS7872 in ASN lookup Look up an IP in this network (157.132.0.1) All networks in United States

IPv4 prefixes

All 9 prefixes, in address order.

157.132.0.0/16
192.150.224.0/24
192.207.225.0/24
198.102.91.0/24
199.4.250.0/23
199.184.189.0/24
199.201.248.0/23
204.89.132.0/23
204.238.237.0/24

IPv6 prefixes

All 1 prefix.

2620:11d:3000::/44

Similar-sized networks in United States

ASNNameIPv4 addresses

AS63479#814 HAMWAN - HamWAN68,864

AS11757#815 WHIRLPOOL-ASN - Whirlpool Corporation68,608

AS14789#816 CLOUDFLARENET - Cloudflare, Inc.68,352

AS3147#818 US-BANCORP - U.S. BANCORP68,352

AS25996#819 FBICJIS - FBI Criminal Justice Information Services68,096

AS3428#820 ESNET-AS - ESnet68,096

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