ResearchRouting table, RPKI, IRR & looking glass

AS138 United States Department of Defense (DoD)

AS138 (DNIC-AS-00138) is registered to United States Department of Defense (DoD) in US. It originates 20 prefixes in the global routing table.

20
IPv4 prefixes
0
IPv6 prefixes
26,368
IPv4 addresses
0%
RPKI valid
Registration

Who holds AS138

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS138
Handle
DNIC-AS-00138
Organization
United States Department of Defense (DoD)
Country
US
ASPA
None published
Routing

What AS138 announces

Prefixes originated by AS138 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
20
IPv6 prefixes
0
IPv4 addresses
26,368 (103 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
20
ROAs naming AS138
0
With an IRR route object
0 0%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (20)
131.66.44.0/22131.66.48.0/22131.66.246.0/24131.66.249.0/24131.66.250.0/24131.66.251.0/24131.66.252.0/24141.234.0.0/18144.183.15.0/24144.183.16.0/24144.183.17.0/24144.183.20.0/24144.183.32.0/22144.183.127.0/24144.183.128.0/23144.183.130.0/24144.183.131.0/24144.183.196.0/22144.183.200.0/21144.183.227.0/24

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS138 is reached through

The AS just before AS138 in the paths our looking glass collectors hold, for 20 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS27064 DNIC-ASBLK-27032-27159 20
Tools

Check AS138 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup