Data as of Nov 9, 2026
Autonomous system

AS1556

United States Department of Defense (DoD)

Announces 132,096 addresses in 5 prefixes. None of it is anonymizer space.

Type
Business
US

Announced prefixes

Arrived
PrefixTypeHolderRPKI
136.209.0.0/16
since Mar 2008
Business
via Headquarters, USAISC
155.24.0.0/16
since Jan 2013
Business
via Headquarters, USAISC
155.155.192.0/23
since May 2013
Business
via Headquarters, USAISC
206.39.14.0/24
since Jun 2017
Business
via DoD Network Information Center
206.39.35.0/24
since Jan 2008
Business
via DoD Network Information Center

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it