AS21617 National Archives and Records Administration

NARA - National Archives and Records Administration · registered in the United States

IPv4 addresses8,1927 prefixes · <0.001% of announced IPv4

Rank in United States#3,372largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#10,650of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS21617 in ASN lookup Look up an IP in this network (207.245.160.1) All networks in United States

IPv4 prefixes

All 7 prefixes, in address order.

207.245.160.0/20
207.245.176.0/23
207.245.178.0/23
207.245.180.0/24
207.245.181.0/24
207.245.182.0/23
207.245.184.0/21

Similar-sized networks in United States

ASNNameIPv4 addresses

AS19870#3369 CCSD - Cherry Creek School District #58,192

AS20004#3370 MISO - Midcontinent Independent System Operator, Inc.8,192

AS21555#3371 LHTC - LAUREL HIGHLAND TELEPHONE COMPANY8,192

AS21669#3373 NJ-STATEWIDE-LIBRARY-NETWORK - New Jersey State Library8,192

AS21709#3374 IMPLEX-NET - Implex.net, Inc.8,192

AS21873#3375 NEWMN - Northeast Service Cooperative (ASN-NEWMN)8,192

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