AS146

AS146 is a legacy U.S. Department of Defense Autonomous System Number registered with ARIN under the AS name HQEIS-AS and held by Air Force Systems Networking (AFSN), the U.S. Air Force organization that historically managed data communications across Air Force base-level networks, Network Operations and Security Centers, and the broader Air Force Enterprise Network (AFNET). The ARIN registrant org handle is 7ESG, with the registrant address listed at Gunter Annex, Maxwell AFB, Alabama, and administrative, technical, and abuse contact roles routed through DISA-Columbus (Defense Information Systems Agency, Whitehall/Columbus, Ohio). The ARIN registration remains in "active" status, but that reflects a maintained registry record, not active routing: as of June 2026, AS146 announces zero IPv4 and zero IPv6 prefixes, is seen by 0 of ~326 IPv4 and 0 of ~320 IPv6 RIPE RIS peers, and is not present in the global BGP table. CAIDA ranks it 79459 with an AS degree of zero and a customer cone of just itself. No notable public abuse signal was found across Spamhaus ASN-DROP, NANOG archives, or threat-intelligence feeds; the broader AFSN ISP family scores 0/100 on Scamalytics fraud risk. AS146 is best described as a dormant, corporate/government-held legacy military ASN with no current operational routing footprint.

Operator

Air Force Systems Networking (AFSN), U.S. Air Force / DoD; ARIN OrgId 7ESG, registrant address 501 East Moore Dr., Bldg 884 Rm 1100, Gunter Annex, Maxwell AFB, AL 36114 [Confirmed] — ARIN RDAP (rdap.arin.net/registry/autnum/146)

Country / RIR

US, ARIN [Confirmed] — ARIN RDAP; RIPEstat as-overview (block "Assigned by ARIN")

AS name

HQEIS-AS [Confirmed] — ARIN RDAP

Allocated

ARIN ASN registration eventDate 1987-12-21 (per ARIN RDAP record; this is the ARIN registry value, not an IEEE date — third-party aggregator "date registered" values may differ); ASN last changed 2009-05-15 [Likely for original date / Confirmed for last-changed] — ARIN RDAP, ipinfo.io/AS146

Org status

active ARIN registration (registry maintained), no active BGP routing presence; admin/tech/abuse contact DISA-Columbus, REGIS10-ARIN, +1-844-347-2457 ext.2 [Confirmed] — ARIN RDAP

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal as of 2026-06-14; not on Spamhaus ASN-DROP; no AS146-specific NANOG threads; AFSN ISP family scores 0/100 on Scamalytics

Abuse contact

disa.columbus.ns.mbx.arin-registrations@mail.mil

Network & routing

Network type

U.S. military / government internal network; legacy, dormant — not a commercial ISP or public carrier [Confirmed] — bgp.tools/as/146, ipinfo.io/AS146

Routing/peering

zero IPv4 and zero IPv6 prefixes announced; not in global BGP table; 0/326 RIS peers (v4), 0/320 RIS peers (v6); 0 upstreams, 0 peers, 0 downstreams [Confirmed] — bgp.he.net/AS146, bgp.tools/as/146, stat.ripe.net routing-status (resource=146)

AS rank / cone

CAIDA rank 79459; AS degree total 0; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses; clique member false; IXP false [Confirmed] — api.caida.org/as-rank/v2/asns/146

RPKI posture

not assessable — no prefixes announced, so no ROAs are checkable; bgp.he.net shows 0 RPKI-valid and 0 RPKI-invalid originations [Confirmed as not-assessable] — bgp.he.net/AS146

Peering policy

none published; no PeeringDB peering policy listed for the AFSN org [Unknown] — peeringdb.com/org/20118

Notable usage

one of ~200 ASNs historically assigned to AFSN supporting Air Force base networks, NOSCs, and AFNET; registered as early as 1987-12-21, among the earliest U.S. military ASN allocations; carries no active prefixes today [Likely for the ~200 AFSN-ASN historical context / Confirmed for current inactivity] — solutions71.com, ARIN RDAP, bgp.tools/as/146

Analyst note

Encountered as a dormant U.S. Air Force legacy ASN; WHOIS resolves to Air Force Systems Networking via DISA-Columbus. No active routing; a sourced null on abuse is the honest finding.