AS2705 BJC HEALTH SYSTEM

BJCHE-1 - BJC HEALTH SYSTEM · registered in the United States

IPv4 addresses65,5361 prefixes · 0.002% of announced IPv4

Rank in United States#1,082largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,055of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS2705 in ASN lookup Look up an IP in this network (159.251.0.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

159.251.0.0/16

Similar-sized networks in United States

ASNNameIPv4 addresses

AS2532#1079 LOC - Library of Congress65,536

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AS2650#1081 EOP-ASN - Executive Office Of The President65,536

AS2768#1083 ERIE-COUNTY - The County of Erie65,536

AS2769#1084 NEBRASKA - State of Nebraska / Office of the CIO65,536

AS2903#1085 MORIC - Madison-Oneida BOCES65,536

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