AS366 — DNIC-ASBLK-00306-00371

AS366 announces 1 IPv4 prefixes covering 65,536 addresses and 2 IPv6 prefixes.

About this network

An early US Department of Defense network, allocated from the DNIC-ASBLK-00306-00371 block registered to the DoD Network Information Center (DNIC).

What it's used for

• US military / Department of Defense networking.

Notable

• A US government / DoD network, not a commercial ISP or host. Registered to the DoD Network Information Center (DNIC), which holds many federal ASNs.
• The low AS number reflects an allocation from the internet's earliest years, handed out roughly sequentially.

Interesting

• Part of a contiguous block of AS numbers (306–371) reserved for the DoD, a common pattern for early government allocations.

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

Announced prefixes

• 55.82.0.0/16
• 2001:480:280::/48
• 2608:10a:3600::/40

Upstream networks

• AS306 United States Department of Defense (DoD)
• AS668 United States Department of Defense (DoD)

Adjacent networks

• AS306 United States Department of Defense (DoD)
• AS668 United States Department of Defense (DoD)