AS21556

National Aeronautics and Space Administration

AS 21556 NARC-EROOT

Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.

512 IP addresses
ASN21556
NameNARC-EROOT
OrganizationNational Aeronautics and Space Administration
CountryUnited States  
RegistryARIN
IPv4 addresses512
IPv6 /64 networks217
Prefixes4
Other ASN allocated to National Aeronautics and Space Administration
ASN Name IP addresses
270 AS270 1,481,984
297 AS297 938,240
1843 AS1843-7 267,264
1701 AS1701 131,072
10343 AS10343 123,904
24 AS24 65,538
1848 AS1848 9,732
372 AS372 1,792
2143 AS2143 1,792
22767 AS22767 12
2142 AS2142 0
10888 AS10888 0
20301 AS20301 0
10371 AS10371 0
1749 AS1749 0
1316 AS1316 0
1263 AS1263 0
1262 AS1262 0
1254 AS1254 0
1202 AS1202 0
771 AS771 0
41 AS41 0
23 AS23 0
IPv4 Prefixes for AS21556
Network Location Addresses
192.12.28.0/24 National Aeronautics and Space Administration   Reston 256
192.203.230.0/24 National Aeronautics and Space Administration   Birmingham 256
IPv6 Prefixes for AS21556
Network Location /64 Prefixes
2001:500:a8::/48 National Aeronautics and Space Administration   Birmingham 216
2620:126:e000::/48 National Aeronautics and Space Administration   Birmingham 216