AS18663 University of the Pacific

UOP-AS - University of the Pacific · registered in the United States

IPv4 addresses32,7681 prefixes · 0.001% of announced IPv4

Rank in United States#1,748largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#4,830of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS18663 in ASN lookup Look up an IP in this network (138.9.0.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

138.9.0.0/17

Similar-sized networks in United States

ASNNameIPv4 addresses

AS13759#1745 WILKES-MULTI-HOME1 - Wilkes University32,768

AS14550#1746 MIDDLEBURY-COLLEGE - Middlebury College32,768

AS18497#1747 UTSI-AS - The University of Tennessee Space Institute32,768

AS19869#1749 AECNET - Ovintiv32,768

AS22854#1750 CATAWBA-COLLEGE - Catawba College32,768

AS22978#1751 GSU - Governors State University32,768

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