AS5978 — AS5978

AS5978 announces 3 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

A US Department of Defense network from the block DNIC-ASBLK-05800-06055, registered to the DoD Network Information Center (DNIC).

What it's used for

• US government / military networking. It announces a small set of prefixes from the DNIC-held 204.222.0.0 and 199.208.0.0 ranges. The generic block registration does not name a specific base, unit or mission.

Notable

• A government / DoD network, not a commercial ISP or host.
• A small footprint — around 1,000 IPv4 addresses across three prefixes.
• Part of a contiguous run of ASNs (5800–6055) held by the DoD Network Information Center, and it draws from the same 204.222.0.0 parent block as AS5957.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 199.211.157.0/24
• 199.211.162.0/24
• 204.222.228.0/23

Upstream networks

• AS668 United States Department of Defense (DoD)

Adjacent networks

• AS668 United States Department of Defense (DoD)