AS121 — DNIC-AS-00121 - United States Department of Defense (DoD)

AS121 announces 3 IPv4 prefixes covering 9,728 addresses and 0 IPv6 prefixes.

About this network

A US Department of Defense network (DNIC-AS-00121), registered through the Defense Network Information Center (DNIC), which holds many federal ASNs.

What it's used for

• US government / military networking.

Notable

• A US DoD allocation, not a commercial ISP or host. The low AS number, and the DNIC registration, mark it as an early-internet allocation to the federal government.

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

Announced prefixes

• 214.54.192.0/19
• 214.54.224.0/22
• 214.54.230.0/23

Upstream networks

• AS668 United States Department of Defense (DoD)

Adjacent networks

• AS668 United States Department of Defense (DoD)

Routing security

• RPKI: 0 valid, 0 invalid and 6 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 83% of announcements registered; 5 route objects.
• Listed in as-sets: AS-DREN, AS-HURRICANE, AS-TRANSROUTE-SPEC, AS20965:AS-FROM-INTERNET2-TO-GEANT, AS668:AS-TRANSIT.