AS444

AS444 is a legacy autonomous system number registered under ARIN to Air Force Systems Networking (AFSN), a U.S. Department of the Air Force / Department of Defense organization (ARIN OrgID 7ESG, registrant address Maxwell AFB, AL). It falls inside ARIN's flat-allocated AFCONC-BLOCK1-AS range (AS379–AS508), which ARIN resolves to a single registration record (RDAP handle AS379) rather than an AS444-specific autnum object — standard for these legacy DoD flat blocks and not a data-quality issue. The key triage point for AS444 is that it is registered-but-dormant on the public Internet: every routing source consulted (RIPEstat, CAIDA AS Rank, bgp.he.net, IPinfo) agrees it announces zero IPv4 and zero IPv6 prefixes today, has zero visible BGP peers, zero upstreams, and zero customers. RIPEstat records historical routing — first seen announcing 132.30.0.0/16 on 2007-11-16 and last seen announcing 132.3.20.0/22 on 2020-06-23 — after which it went silent; 0 of 324 IPv4 RIS peers and 0 of 320 IPv6 RIS peers currently see it. Its CAIDA AS rank of 79,459 sits near the bottom of the global ranking, its customer cone is a singleton (itself, 0 prefixes, 0 addresses), and CAIDA's own seen flag is false. The abuse contact routes through DISA-Columbus (Defense Information Systems Agency, Whitehall, OH) at a .mil address. No notable public abuse signal was found as of 2026-07-02 — not in Spamhaus (SBL/DBL/XBL/ASN-DROP), AbuseIPDB, Talos, VirusTotal, or NANOG archives — consistent with a clean, dormant ASN held by a U.S. military operator.

Operator

Air Force Systems Networking (AFSN), a U.S. Air Force / DoD organization; ARIN OrgID 7ESG, 501 East Moore Dr. Bldg 884 Rm 1100 Gunther Annex, Maxwell AFB, AL 36114 [Confirmed] — ARIN RDAP (rdap.arin.net/registry/autnum/444), db-ip.com/as444

Country / RIR

US, ARIN [Confirmed] — RIPEstat abuse-contact-finder (authoritative_rir: arin), ARIN RDAP

Allocated

1989-08-04 (ARIN RDAP autnum TOP-LEVEL registration event for the AFCONC-BLOCK1-AS flat block AS379–AS508; a first-party RIR registry fact, NOT an IEEE date); last changed 2008-06-06 [Confirmed] — ARIN RDAP autnum top-level events; corroborated by bgp.tools/IPinfo ("Registered August 4, 1989")

Org status

active per ARIN registry status, operationally dormant on the public Internet (unannounced / no routed prefixes); registrant Air Force Systems Networking, admin/registration contact DISA-Columbus (handle REGIS10-ARIN) [Confirmed] — ARIN RDAP, IPinfo

Contacts

abuse disa.columbus.ns.mbx.arin-registrations@mail.mil (handle REGIS10-ARIN, DISA-Columbus, 300 North James Road, Whitehall, OH 43213) [Confirmed] — ARIN RDAP, RIPEstat abuse-contact-finder

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-02 — not in Spamhaus (SBL/DBL/XBL/ASN-DROP), AbuseIPDB (direct check page returned HTTP 403; search-level only), Talos, VirusTotal, or NANOG archives; clean, dormant ASN under a U.S. military operator

Network & routing

Network type

U.S. military / government internal network (Department of the Air Force / DoD data communications); legacy/dormant on the public Internet — not a commercial ISP, content, or transit provider [Confirmed] — RDAP registrant org, solutions71.com/air-force-systems-networking-afsn

Size

dormant — 0 IPv4 prefixes / 0 IPv4 addresses and 0 IPv6 prefixes announced; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — RIPEstat routing-status / CAIDA AS Rank / bgp.he.net / IPinfo (2026-07)

Routing/peering

NOT announced — 0 RIS peers seeing it (0/324 v4, 0/320 v6); CAIDA degree total 0 (customer 0, peer 0, provider 0); no upstreams or peers visible in any source [Confirmed]. No PeeringDB network record for AS444 and no published peering policy — consistent with an internal DoD block

[Confirmed] — RIPEstat routing-status, CAIDA AS Rank, peeringdb.com/org/20118

RPKI

not assessable — AS444 announces no prefixes, so there are no ROAs to validate (RIPEstat rpki-validation requires an announced prefix) [Unknown] — RIPEstat

Notable usage

none identified on the public Internet — historical announcements ceased 2020-06-23; no evidence of active routing or public-facing traffic [Confirmed] — RIPEstat routing-status, bgp.he.net

Related ASNs

falls within the AFCONC-BLOCK1-AS flat block AS379–AS508 (Air Force Systems Networking); a related PeeringDB org (id 20118) lists AS65, AS123, AS175, AS221, AS301 under the same name [Likely] — ARIN RDAP, peeringdb.com/org/20118

Analyst note

Encountered as a registered-but-dormant legacy ASN within an ARIN flat-allocated DoD block; RDAP resolves the whole AS379–AS508 range to a single record, so the 1989-08-04 allocated date and org details are block-level (ARIN exposes no AS444-specific sub-registration event). Clean, inactive ASN.