Autonomous system detail

AS54

Not announced

Operated by DNIC-AS-00054 - Headquarters, USAISC.

Summary

// analyst note
Registered-but-dormant U.S. Army/DoD legacy number, not live infrastructure; traffic labeled AS54 is more likely spoofed/mislabeled than a genuine announcement. Org-level RegDate 1990-03-26 is not the AS assignment date.
// security note
NEUTRAL/DATED: no notable public abuse signal found as of 2026-06-08; consistent with a dormant government allocation.
IPv4 prefixes
0
~0 addresses
IPv6 prefixes
0
—
Peer networks
0
0 up · 0 down
IANA block
1-1876
Assigned by ARIN
[ 01 ] — Context

About this ASN.

Updated  ·  Confidence: High

AS54 is a legacy U.S. government allocation registered under ARIN to Headquarters, USAISC (the U.S. Army Information Systems Command), administered under the ARIN org HEADQU-3 at Fort Huachuca, AZ, with the DNIC-AS naming convention denoting the Defense Network Information Center lineage. It is one of the Army's large pool of DNIC autonomous-system numbers; Potaroo's legacy-autnums mirror records the original 1980s label as "COA-FIN-NET-AS — Army Information Systems Command," consistent with continuous Army tenure. The ASN appears dormant in 2026 — no originated prefixes are visible, matching the inactive/single-peer character of sibling USAISC legacy ASNs. The ARIN RDAP RegDate is 1985-12-24. For triage this is a registered-but-dormant Army/DoD legacy number, not live infrastructure; traffic labeled AS54 in logs is far more likely spoofed or mislabeled than a genuine announcement. No notable public abuse signal was found as of June 2026.

Operator
Headquarters, USAISC (U.S. Army Information Systems Command; ARIN OrgId HEADQU-3, Fort Huachuca, AZ 85613) [Confirmed] — ARIN RDAP
Country / RIR
US, ARIN [Confirmed]
Allocated
ARIN RDAP RegDate 1985-12-24 [Confirmed] — ARIN RDAP
Org status
active org / dormant ASN

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-06-08; consistent with a dormant government allocation — networksdb.io

Network & routing

Network type
government / military (U.S. Army) [Confirmed]
Size
appears dormant; no visible originated prefixes — bgp.tools / networksdb.io (2026-06)
Routing/peering
dormant; RPKI n/a — bgp.tools
Notable usage
[historical] Potaroo legacy label "COA-FIN-NET-AS — Army Information Systems Command"; one of the Army's DNIC AS pool administered from Fort Huachuca — army.mil
Related ASNs
HEADQU-3 pool — AS13, AS51, AS66, AS252, AS672, AS1451–1456, AS1500–1502, and many more [Confirmed]
Analyst note
Registered-but-dormant U.S. Army/DoD legacy number, not live infrastructure; traffic labeled AS54 is more likely spoofed/mislabeled than a genuine announcement.
[ 02 ] — Announced prefixes

What this network routes.

0 prefixes total · RIPEstat data · cached, not real-time
// IPv4 prefixes0
No IPv4 prefixes announced.
// IPv6 prefixes0
No IPv6 prefixes announced.
[ 03 ] — Notable peers & upstreams

Who it talks to.

0 observed neighbours
Neighbour data unavailable from public BGP collectors.