AS63174 Blue Shield of California

LAS-COLO2 - Blue Shield of California · registered in the United States

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

Rank in United States#8,775largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#38,568of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS63174 in ASN lookup Look up an IP in this network (165.253.43.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

165.253.43.0/24
165.253.64.0/23
165.253.144.0/24

Other ASNs named Blue Shield of California

1 other network uses the same organisation name; together with AS63174 they announce 2,304 IPv4 addresses.

ASNNameIPv4 addresses

AS63138SAC-COLO1 - Blue Shield of California US1,280

Similar-sized networks in United States

ASNNameIPv4 addresses

AS63123#8772 FAREWAY-NETWORK - Fareway Stores, Inc.1,024

AS63136#8773 SIPRADIUS - SipRadius1,024

AS63149#8774 AS-SILO - ScienceLogic, Inc1,024

AS63185#8776 IQVIA-ATLANTA - IQVIA Holdings Inc1,024

AS63209#8777 KN-CLT-ASN - KODIAK NETWORKS, INC.1,024

AS63258#8778 L7GUARD - Web Hosting, Inc.1,024

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