AS2633 National Academy of Sciences

NAS1-AS - National Academy of Sciences · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#10,531largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#49,507of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS2633 in ASN lookup Look up an IP in this network (198.49.206.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

198.49.206.0/24
214.9.168.0/24

Other ASNs named National Academy of Sciences

1 other network uses the same organisation name; together with AS2633 they announce 66,048 IPv4 addresses.

ASNNameIPv4 addresses

AS7301NAS-AS - National Academy of Sciences US65,536

Similar-sized networks in United States

ASNNameIPv4 addresses

AS1882#10528 STUPI STUPI LLC512

AS1974#10529 MEHEALTH-SOUTH - Southern Maine Medical Center512

AS2021#10530 UNISYS-INT - Unisys Corporation512

AS2636#10532 LOUISVILLE-MSD-ASN-01 - LOUISVILLE AND JEFFERSON COUNTY METROPOLITAN SEWER DISTRICT512

AS2695#10533 RJRT01-TOB1 - RJ Reynolds Tobacco Company512

AS3425#10534 ESNET-AS - ESnet512

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