AS7764 National Oceanic and Atmospheric Administration

CENSUSBUREAU - National Oceanic and Atmospheric Administration · registered in the United States

IPv4 addresses65,53616 prefixes · 0.002% of announced IPv4

Rank in United States#1,015largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,923of 79,396 networks with IPv4

IPv61,024 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS7764 in ASN lookup Look up an IP in this network (148.129.0.1) All networks in United States

IPv4 prefixes

All 16 prefixes, in address order.

148.129.0.0/21
148.129.8.0/23
148.129.10.0/24
148.129.11.0/24
148.129.12.0/22
148.129.16.0/20
148.129.32.0/19
148.129.64.0/19
148.129.96.0/19
148.129.128.0/19
148.129.160.0/23
148.129.162.0/23
148.129.164.0/22
148.129.168.0/21
148.129.176.0/20
148.129.192.0/18

IPv6 prefixes

All 1 prefix.

2610:20:2000::/38

Other ASNs named National Oceanic and Atmospheric Administration

5 other networks use the same organisation name; together with AS7764 they announce 503,296 IPv4 addresses.

ASNNameIPv4 addresses

AS3477NOAA-NWAVE - National Oceanic and Atmospheric Administration US321,280

AS2648NOAA-BOULDER - National Oceanic and Atmospheric Administration US112,384

AS26100NOAA-PACIFIC-REGION-CENTER - National Oceanic and Atmospheric Administration US2,304

AS10616NTIS - National Oceanic and Atmospheric Administration US1,536

AS6629NOAA-SILVERSPRING - National Oceanic and Atmospheric Administration US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS18515#1012 UTARLINGTON - University of Texas at Arlington65,536

AS49#1013 US-NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOGY - National Institute of Standards and Technology65,536

AS2496#1014 UKANS - University of Kansas65,536

AS324#1016 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)65,536

AS358#1017 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)65,536

AS366#1018 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)65,536

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