AS398665 COUNTY OF SAN BERNARDINO

CSBSO - COUNTY OF SAN BERNARDINO · registered in the United States

IPv4 addresses1,0243 prefixes · <0.001% of announced IPv4

Rank in United States#8,967largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#42,337of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS398665 in ASN lookup Look up an IP in this network (8.7.17.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

8.7.17.0/24
12.201.127.0/24
170.164.132.0/23

Other ASNs named COUNTY OF SAN BERNARDINO

1 other network uses the same organisation name; together with AS398665 they announce 11,520 IPv4 addresses.

ASNNameIPv4 addresses

AS19739COUNTY-SANBERNARDINO - County of San Bernardino US10,496

Similar-sized networks in United States

ASNNameIPv4 addresses

AS398437#8964 HOT-SPRINGS-TEL-01 - Hot Springs Telephone Company1,024

AS398557#8965 SDS-WIRELESS-INC - SDS Wireless, Inc.1,024

AS398638#8966 JELLYDIGITAL - Jelly Digital, LLC.1,024

AS398726#8968 CABBIT-TECH-01 - Cabbit Technology LLC1,024

AS398854#8969 ULTRANETWIFI - Ultranet, LLC1,024

AS398947#8970 CABLECOLOR-MIA-01 - CABLE COLOR LLC1,024

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