AS472

AS472 is a legacy autonomous system number registered under ARIN as part of the AFCONC-BLOCK1-AS block (AS379–AS508), a single mass registration held by "Air Force Systems Networking" (ARIN org handle 7ESG) at Maxwell Air Force Base, Alabama, and administratively managed by DISA-Columbus, the Defense Information Systems Agency's Columbus, Ohio field office. Unlike many individually-documented ASNs, AS472 has no per-ASN ARIN record or public operator website of its own — the entire AS379–AS508 range shares one registration, whose top-level RDAP registration event dates to 1989-08-04, with the record last changed 2008-06-06. Routing data shows AS472 has been dark since 2015: it first appeared originating 132.47.0.0/16 in 2001-09-26 and last originated 131.16.242.0/24 on 2015-08-11 (a prefix bgp.he.net flags as a bogon route), and today carries zero announced IPv4 or IPv6 prefixes, a CAIDA AS rank of 79,459, and a singleton customer cone with no current upstreams, peers, or IXP presence. Its lone historically observed BGP peer was AS27139, the U.S. Department of Defense Network Information Center. No PeeringDB record, peering policy, or NANOG archive discussion exists for AS472, and no abuse or threat-feed signal was found against Spamhaus DROP/ASN-DROP or the bad-asn-list blocklist — consistent with a long-dormant U.S. military numbering block rather than a search gap.

Operator

Air Force Systems Networking (ARIN org handle 7ESG, Maxwell AFB, AL); administratively managed by DISA-Columbus (Defense Information Systems Agency, Columbus, OH field office) [Confirmed] — https://rdap.arin.net/registry/autnum/472

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/472

Allocated

1989-08-04 (ARIN RDAP top-level registration event on the AS379–AS508 "AFCONC-BLOCK1-AS" block record, not an AS472-only individual record); last changed 2008-06-06 [Confirmed] — https://rdap.arin.net/registry/autnum/472

Org status

active per ARIN RDAP autnum status field; part of a DoD/Air Force block administered by DISA-Columbus [Confirmed] — https://rdap.arin.net/registry/autnum/472

Contacts

Registration (REGIS10-ARIN) / DISA-Columbus, 300 North James Road, Whitehall, OH 43213; disa.columbus.ns.mbx.arin-registrations@mail.mil; +1-844-347-2457 ext. 2 [Confirmed] — https://rdap.arin.net/registry/autnum/472

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-09 — not in Spamhaus ASN-DROP, the bad-asn-list blocklist, or NANOG archives

Network & routing

Network type

U.S. military/government network (U.S. Air Force / DISA-administered DoD numbering block); not a commercial ISP [Likely] — https://rdap.arin.net/registry/autnum/472, https://whois.arin.net/rest/org/7ESG

Size

dormant — 0 IPv4/IPv6 prefixes; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — CAIDA ASRank asn=472, https://bgp.he.net/AS472

Routing/peering

not currently announced; first seen 2001-09-26 (132.47.0.0/16), last seen 2015-08-11 (131.16.242.0/24, flagged as a bogon route by bgp.he.net); no current upstreams or peers; one historically observed peer, AS27139 (US DoD Network Information Center)

[Confirmed] — https://bgp.he.net/AS472, RIPEstat routing-status for resource=472

RPKI

not assessable — no announced prefixes, so there are no ROAs to validate [Confirmed] — RIPEstat rpki-validation for resource=472

Notable usage

no AS472-specific public documentation found beyond routing history; the AS379–AS508 block is associated with Air Force networking generally per AFMAN 17-2101 [Unknown for AS472-specific usage] — https://static.e-publishing.af.mil/production/1/saf_cio_a6/publication/afman17-2101/afman17-2101.pdf

Related ASNs

part of the AS379–AS508 "AFCONC-BLOCK1-AS" block registration [Confirmed] — https://rdap.arin.net/registry/autnum/472

Analyst note

AS472 has no individually-documented ARIN record — it shares the AS379–AS508 block registration with Air Force Systems Networking (org 7ESG), administered by DISA-Columbus, mirroring the pattern already logged for AS465–AS469 in this pipeline. Dormant since 2015, no abuse signal, no operator website.