Data as of Nov 4, 2026
Autonomous system

AS258

Headquarters, USAISC

Announces 512 addresses in 2 prefixes. None of it is anonymizer space.

Type
Business
US

Announced prefixes

Arrived
PrefixTypeHolderRPKI
139.241.4.0/24
since Dec 2021
BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
139.242.5.0/24
since Dec 2021
BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center

Network & history

Profile
Registered
Dec 23, 1988
Domain
mail.mil
Industry
Internet Service Provider (ISP)