AS21 The RAND Corporation

RAND - The RAND Corporation · registered in the United States

IPv4 addresses2,5609 prefixes · <0.001% of announced IPv4

Rank in United States#5,600largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#19,948of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS21 in ASN lookup Look up an IP in this network (130.154.0.1) All networks in United States

IPv4 prefixes

All 9 prefixes, in address order.

130.154.0.0/23
130.154.3.0/24
130.154.11.0/24
130.154.30.0/24
130.154.33.0/24
130.154.111.0/24
130.154.113.0/24
166.67.240.0/24
192.5.14.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS25631#5597 GALLAUDET - Gallaudet University2,560

AS26470#5598 WPP-IT-PISCATAWAY - Group M Worldwide, LLC2,560

AS399932#5599 TEKVLABS-0804 - Tekvizion PVS, Inc.2,560

AS1603#5601 HSU-AS - Henderson State University2,560

AS1818#5602 DIALKENTUCKY - DIALOG TELECOMMUNICATIONS, INC.2,560

AS1858#5603 DISN-PILOTNET4 - RTX BBN Technologies, Inc.2,560

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