AS22226 San Francisco Unified School District

SFUSD - San Francisco Unified School District · registered in the United States

IPv4 addresses65,5423 prefixes · 0.002% of announced IPv4

Rank in United States#990largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,849of 79,396 networks with IPv4

IPv664 addresses (smaller than a /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS22226 in ASN lookup Look up an IP in this network (137.164.13.69) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

137.164.13.68/30
137.164.13.160/31
156.1.0.0/16

IPv6 prefixes

All 1 prefix.

2607:f380::118:9a40:d440/122

Similar-sized networks in United States

ASNNameIPv4 addresses

AS22323#987 UNIVERSITY-OF-CALIFORNIA-MERCED - University of California, Merced65,548

AS13940#988 SJCOE - San Joaquin County Office of Education65,544

AS26488#989 SCU-ASN - Santa Clara University65,544

AS22063#991 JPGT-22063 - J. Paul Getty Trust65,540

AS24#992 AS24 - National Aeronautics and Space Administration65,538

AS400452#993 UC-DAVIS-HEALTH - University of California Davis Medical Center65,538

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