AS264 SRI International

SRINET-AS - SRI International · registered in the United States

IPv4 addresses74,75227 prefixes · 0.002% of announced IPv4

Rank in United States#756largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,308of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS264 in ASN lookup Look up an IP in this network (128.18.0.1) All networks in United States

IPv4 prefixes

All 27 prefixes, in address order.

128.18.0.0/16
128.57.47.0/24
128.57.50.0/24
128.57.60.0/23
128.57.62.0/24
128.57.89.0/24
128.57.92.0/23
128.57.128.0/23
128.57.208.0/23
128.57.216.0/23
192.5.38.0/24
192.5.67.0/24
192.5.92.0/23
192.12.5.0/24
192.12.16.0/24
192.12.33.0/24
192.12.197.0/24
192.12.198.0/23
192.12.200.0/22
192.12.204.0/24
192.33.33.0/24
192.35.159.0/24
192.35.160.0/24
192.47.243.0/24
192.47.254.0/24
192.48.80.0/24
192.67.67.0/24

Other ASNs named SRI International

1 other network uses the same organisation name; together with AS264 they announce 75,264 IPv4 addresses.

ASNNameIPv4 addresses

AS53434SRI-INTERNATIONAL-PRINCETON - SRI International US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS21766#753 BEN-LOMAND-TEL - BEN LOMAND RURAL TELEPHONE COOPERATIVE, INC.74,752

AS14523#754 GEA-CONNECT - Greeneville Energy Authority74,752

AS19679#755 DROPBOX - Dropbox, Inc.74,752

AS63139#757 BEDGE-CO-LIMITED - BEDGE CO LIMITED74,240

AS21582#758 NAU-AS - Northern Arizona University74,240

AS2552#759 WUSTL-ASN - Washington University73,984

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