AS478

AS478 is a legacy autonomous system number registered under ARIN as part of the AFCONC-BLOCK1-AS block (AS379–AS508), held by Air Force Systems Networking (ARIN org handle 7ESG) and administratively managed by DISA-Columbus, the Defense Information Systems Agency's Columbus, Ohio field office. The registrant address on file is Bldg 884 Rm 1100, Gunther Annex, Maxwell AFB, Alabama. Per ARIN RDAP's top-level autnum event data — a first-party registry fact distinct from the nested contact-object records (REGIS10-ARIN registered 2009-06-24; org 7ESG registered 2008-06-05, both later contact-record touches, not the ASN's own registration) — the block's registration event is dated 1989-08-04, with a last-changed event of 2008-06-06. Operationally, AS478 is long dormant: it has not appeared in the global BGP routing table since it last announced 131.16.248.0/24 on 2013-08-07 (having first been seen announcing 132.2.0.0/16 on 2001-09-26), and it currently originates zero IPv4 and zero IPv6 prefixes. Every routing source consulted — RIPEstat and CAIDA AS Rank — agrees on zero visible peers, zero upstreams, zero customers, and no IXP membership; CAIDA's customer cone is a singleton (the ASN itself) and its global AS rank of 79,459 sits near the bottom, consistent with total routing inactivity. No PeeringDB network object exists for AS478 (direct API query returned 404), and no dedicated public operator website was located — only a general association with the af.mil domain. No notable public abuse or threat-feed signal was found as of 2026-07-10 across Spamhaus, AbuseIPDB, and NANOG archive searches, which is unsurprising given the ASN's routing dormancy since 2013.

Operator

Air Force Systems Networking (ARIN org 7ESG); registrant address Bldg 884 Rm 1100, Gunther Annex, Maxwell AFB, AL 36114 [Confirmed] — https://rdap.arin.net/registry/autnum/478 , https://whois.ipip.net/AS478

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/478

Allocated

1989-08-04 (ARIN RDAP autnum top-level registration event for the AS379–AS508 block containing AS478 — read from top-level events[], not the decoy nested-entity registration dates of 2009-06-24/2008-06-05); last changed 2008-06-06 [Confirmed, two independent angles A2/A3 agree, both citing the same top-level RDAP event] — https://rdap.arin.net/registry/autnum/478

Website

no dedicated public operator website found; loosely associated with the general af.mil domain by some IP-intelligence aggregators, not AS478-specific [Unknown] — https://ipinfo.io/AS478

Org status

ARIN registry status active (current/valid registration record), distinct from the ASN's operational dormancy in global routing since 2013 [Confirmed] — https://rdap.arin.net/registry/autnum/478 , https://bgp.he.net/AS478

IANA reference

none published (RFC column intentionally left blank — no IANA/RFC reference applies) [Unknown]

Security/abuse context (NEUTRAL, DATED)

no notable public abuse or threat-feed signal found as of 2026-07-10 — checked Spamhaus blocklist, AbuseIPDB, and NANOG mailing-list archives; ASN unannounced/dormant since 2013-08-01, which limits abuse-feed exposure. The historically-originated prefix 131.16.248.0/24 is flagged by Hurricane Electric's BGP Toolkit as a "bogon route" — a routing-registry/RPKI-absence artifact of long-term non-announcement, not a third-party abuse designation

Network & routing

Network type

U.S. government/military (Air Force) internal network, administered by DISA-Columbus (abuse contact disa.columbus.ns.mbx.arin-registrations@mail.mil, +1-844-347-2457) [Confirmed] — https://rdap.arin.net/registry/autnum/478

Routing status

NOT currently announced — 0 IPv4/IPv6 prefixes, 0 of 326 RIS peers seeing v4, 0 of 321 seeing v6; historically first seen announcing 132.2.0.0/16 on 2001-09-26, last seen announcing 131.16.248.0/24 on 2013-08-07 [Confirmed] — https://stat.ripe.net/478

Peering/degree

CAIDA AS rank 79,459; customer cone singleton (1 ASN, 0 prefixes, 0 addresses); degree total/customer/peer/provider all 0; not a clique member; no IXP membership; historical BGP peer AS27139 (US DoD Network Information Center), last observed around the 2013 routing-table snapshot

[Confirmed] — https://asrank.caida.org/asns/478 , https://bgp.he.net/AS478

Peering policy

not publicly published; no PeeringDB network object exists for AS478 (direct API query returned 404) [Confirmed (absence verified)] — https://www.peeringdb.com/api/net?asn=478

RPKI

not assessable — AS478 currently announces no prefixes, so there are no ROAs to validate [Unknown/not applicable] — https://stat.ripe.net/478

Related ASNs

sibling numbers within the AS379–AS508 AFCONC-BLOCK1-AS block [Confirmed for block membership; individual siblings not separately enumerated] — https://rdap.arin.net/registry/autnum/478

ASN / block

AS478, part of ARIN block AFCONC-BLOCK1-AS (AS379–AS508) [Confirmed] — https://rdap.arin.net/registry/autnum/478

Analyst note

Two independent research angles (A2-operator, A3-routing) both read the ARIN RDAP autnum top-level events[] directly and agree on the 1989-08-04 registration / 2008-06-06 last-changed pair, correctly distinguishing it from the nested REGIS10-ARIN/7ESG contact-object dates. A5-community flagged allocation_date as Unknown from a stale WHOIS mirror but explicitly recommended the RDAP query performed by A2/A3, so it is not treated as a refutation.