AS397741 City Of Dubuque

CITYOFDUBUQUE-01 - City Of Dubuque · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#12,374largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#58,354of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS397741 in ASN lookup Look up an IP in this network (198.212.171.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

198.212.171.0/24
205.159.188.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS397678#12371 RRIS-01 - Red Rock Information Security, LLC512

AS397691#12372 CGMUS - CompuGroup Medical Inc.512

AS397719#12373 TECHSTYLE-FASHION-GROUP - TechStyle, Inc.512

AS397742#12375 NUVISION-TECHNOLOGIES-INC - NUVISION TECHNOLOGIES512

AS397775#12376 RVH-ASN - RIVERVIEW HOSPITAL512

AS397776#12377 SUMMITBGP - County of Summit, Ohio512

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