AS5180 DNIC-ASBLK-05120-05376

A US Department of Defense network from the block DNIC-ASBLK-05120-05376,

registered to the DoD Network Information Center (DNIC).

What it's used for

• US government / military networking. It is one of the larger ASNs in the DNIC block, originating dozens of prefixes across legacy DoD ranges such as 204.34.0.0 and 207.132.0.0.

Notable

• A government / military network, not a commercial ISP or host.
• The blocks it announces are registered generically to the DoD Network Information Center, though several carry names associated with the Defense Finance and Accounting Service (DFAS), the department's payroll and accounting arm.
• The DNIC registration does not name a specific base or unit beyond the Department of Defense.

Interesting

• Not every military ASN carries combat or intelligence traffic. Address space named for DFAS is a reminder that a large share of DoD networking is ordinary back-office work: payroll, contracts, and accounting.