USAS126
Operated by United States Department of Defense (DoD), US.
Summary
- // analyst note
- Minimally active DoD network; one /24 in the routing table via a DoD internal AS (AS27065). Distinguish the current DoD holder from the historical Mare Island Navy label. RegDate 1987-09-09 (Confirmed ARIN).
- // security note
- NEUTRAL/DATED: no notable public abuse signal as of 2026-06-10; government network.
About this ASN.
AS126 is a legacy fall-1987 DoD/DNIC allocation registered under ARIN to the United States Department of Defense (OrgId USDDD, 3990 E. Broad Street, Columbus OH), carrying the handle "DNIC-AS-00126." Its historical RFC-era label was "MINSY-POE-AS / Mare Island Naval Shipyard" — a now-closed California naval shipyard — another case where the legacy label no longer matches the current generic DoD holder. The ARIN autnum RegDate is 1987-09-09 (registry updated 2025-09-12; org RegDate 2007-01-12). It is minimally active, announcing a single IPv4 /24 (134.229.217.0/24, 256 addresses) with peer/upstream the DoD internal AS27065. For triage this is a minimally active DoD network — one /24 in the routing table via a DoD internal AS; distinguish the current DoD holder from the historical Mare Island Navy label. No notable public abuse signal was found as of June 2026.
- Operator
- United States Department of Defense (DoD) (ARIN OrgId USDDD, Columbus OH) [Confirmed] — ARIN RDAP via ipgeolocation. NOT Mare Island Naval Shipyard (historical label).
- Country / RIR
- US, ARIN [Confirmed]
- Allocated
- ARIN autnum RegDate 1987-09-09 (registry updated 2025-09-12; org RegDate 2007-01-12) [Confirmed]
- Org status
- active
Security/abuse context (NEUTRAL, DATED)
no notable public abuse signal as of 2026-06-10; government network — ipgeolocation.io
Network & routing
- Network type
- government / military (DoD) [Confirmed]
- Size
- 1 IPv4 prefix (134.229.217.0/24, 256 addrs), 0 IPv6 — ipgeolocation (2026-06)
- Routing/peering
- minimally active; peer/upstream AS27065 (DoD internal); RPKI unknown — ipgeolocation.io
- Notable usage
- [historical] RFC-era label "MINSY-POE-AS / Mare Island Naval Shipyard" (now-closed CA naval shipyard). [current] a DoD DNIC AS announcing one /24 via DoD internal AS27065 — defense.gov
- Related ASNs
- AS27065 (DoD internal — peer/upstream); DoD DNIC family (AS94/AS95/AS96/AS115/AS118/AS121/AS124) [Confirmed/Likely]
- Analyst note
- Minimally active DoD network; one /24 in the routing table via a DoD internal AS. Distinguish the current DoD holder from the historical Mare Island Navy label.
What this network routes.
- 134.229.217.0/24
Who it talks to.
Neighbours observed by RouteViews at 2026-09-20, lowest ASN first. Relationships are inferences from the CAIDA AS Relationships Dataset, 2026-08-01, and establish no commercial arrangement; a dash means the inference did not resolve.
| ASN | Operator | Role |
|---|---|---|
| AS27065 | — | upstream |