AS39990 Boulder County Government

BCG - Boulder County Government · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#11,534largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#51,377of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS39990 in ASN lookup Look up an IP in this network (97.107.70.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

97.107.70.0/24
192.188.155.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS39978#11531 REED-SMITH-ASN - REED SMITH LLP512

AS39983#11532 PBGC-HQ-AS - Pension Benefit Guaranty Corp.512

AS39985#11533 RACKROOM-SHOES - Rack Room Shoes512

AS40000#11535 NOBLIS-AUTONOMOUS-SYSTEM - Noblis, Inc.512

AS40016#11536 MESIROW - MESIROW FINANCIAL HOLDINGS, INC.512

AS40036#11537 WAL-91-40036 - Wisk Aero LLC512

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