National Oceanic and Atmospheric Administration
United States
US
50
announced
321,536
0 IPv6
ARIN
regional registry
Prefix size breakdown
Distribution of the 50 BGP prefixes announced by AS3477 grouped by CIDR length.
/16
4
/19
3
/20
4
/21
2
/22
3
/23
10
/24
24
First: 137.75.64.0/19 · Last: 206.197.238.0/24
Top cities by IPv4 footprint
Cities where AS3477's prefixes resolve, weighted by address count.
Norman
Oklahoma, US
44.1%
Seattle
Washington, US
44.1%
Ft. Washington
Maryland, US
5.5%
Silver Spring
Maryland, US
2.8%
'Ewa Beach
Hawaii, US
1.9%
Announced prefixes
50 prefixes
Other ASNs in United States
- AS749United States Department of Defense DoD2,715
- AS7018AT&T Enterprises, LLC22,556
- AS7922Comcast Cable Communications, LLC26,172
- AS701Verizon Business15,055
- AS721United States Department of Defense DoD5,112
- AS3356Level 3 Parent, LLC4,486
- AS174Cogent Communications, LLC8,915
- AS14618Amazon.com, Inc.980
- AS6167Verizon Business1,513
- AS714Apple Inc.30
Other ASNs run by National Oceanic and Atmospheric Administration
- AS2648United States
Verify on third-party BGP tools
Cross-check AS3477 on public looking-glass and BGP-data sites.
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