AS395800 JEFFERSON COUNTY PUD NO. 1

JCPN-AS - JEFFERSON COUNTY PUD NO. 1 · registered in the United States

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in United States#9,916largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#46,057of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS395800 in ASN lookup Look up an IP in this network (66.133.58.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

66.133.58.0/23
128.254.210.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS395742#9913 TBG-SERVICES-LLC-DBA-NEXTMSP - The Brookfield Group, LLC.768

AS395760#9914 MAPCOEXPRESS-DC-1 - MAPCO Express, Inc.768

AS395788#9915 KELLOGGCO - Kellogg Company768

AS395832#9917 IPRO-DA7 - IPro Media, Inc.768

AS395861#9918 MIA - Medical Imaging Associates of Idaho Falls, Inc.768

AS395868#9919 FBISD-ASNONE - Fort Bend Independent School District768

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