AS398066 AASHTO

AASHTONET - AASHTO · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#17,403largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#78,296of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS398066 in ASN lookup Look up an IP in this network (72.42.254.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

72.42.254.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS398057#17400 MP-NETWORKS-ASN - MP Networks, LLC256

AS398058#17401 ECCC-EDU - East Central Community College256

AS398062#17402 SPTA-1-AS-1 - Southeastern Pennsylvania Transportation Authority256

AS398072#17404 REGION7-ESC-DMAC - Region VII Education Service Center256

AS398080#17405 TELEVISION-CITY-STUDIOS-LLC - Television City Studios, LLC256

AS398084#17406 AS-NETWORK228-536 - Network 228, LLC256

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