AS21639 Blue Cross Blue Shield Of Louisiana

BCBSLA-ASN - Blue Cross Blue Shield Of Louisiana · registered in the United States

IPv4 addresses2642 prefixes · <0.001% of announced IPv4

Rank in United States#12,729largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#58,756of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS21639 in ASN lookup Look up an IP in this network (66.248.253.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

66.248.253.0/24
165.254.60.216/29

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AS26066#12732 NVUSD - Napa Valley Unified School District258

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