AS460

AS460 is a legacy autonomous system number registered under ARIN within a large block-registered object named AFCONC-BLOCK1-AS, which spans AS379 through AS508 and is held by the organization handle 7ESG, "Air Force Systems Networking." This places AS460 squarely inside a historical U.S. Department of the Air Force / Department of Defense numbering block rather than a commercial ISP or hosting operator. Day-to-day registry administration for the block runs through DISA (Defense Information Systems Agency), Columbus field office, whose registration team (disa.columbus.ns.mbx.arin-registrations@mail.mil) is listed as the abuse, administrative, and technical point of contact. The registrant organization's postal address places it at Maxwell AFB, AL, historically associated with Air Force network engineering activity centered at Gunter Annex. Operationally, AS460 is dormant: RIPEstat, CAIDA AS Rank, and ARIN RDAP all agree it currently originates zero IPv4 and zero IPv6 prefixes and has zero observed BGP peers, upstreams, or customers in the global routing table. Its CAIDA AS rank of 79,459 and singleton customer cone (1 ASN, 0 prefixes, 0 addresses) both reflect this inactivity. Historical routing data shows AS460 briefly announced 199.251.0.0/24 for about a month in September–October 2001, with no announcements observed since. No public peering policy, dedicated operator website, or PeeringDB entry specific to AS460 exists, consistent with this being a closed government network resource rather than a commercial network operator. No notable public abuse signal — Spamhaus, NANOG archives, AbuseIPDB, and similar sources — was found for AS460 as of July 2026, consistent with a low-profile, largely unrouted DoD-held ASN.

Operator

Air Force Systems Networking (org handle 7ESG), U.S. Department of the Air Force; registry administration by DISA Columbus [Confirmed] — https://rdap.arin.net/registry/autnum/460

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/460

Allocated

1989-08-04 (ARIN RDAP autnum top-level "registration" event for the AFCONC-BLOCK1-AS block, AS379–AS508, which contains AS460 — a first-party RIR registry fact, not an IEEE date) [Confirmed] — https://rdap.arin.net/registry/autnum/460

Org status

active registry object (status: active per ARIN RDAP for the covering block); operationally dormant/unrouted (0 prefixes, 0 peers) [Confirmed] — https://rdap.arin.net/registry/autnum/460

Contacts

disa.columbus.ns.mbx.arin-registrations@mail.mil; +1-844-347-2457 ext2; registrant address 501 East Moore Dr., Bldg 884 Rm 1100, Gunter Annex, Maxwell AFB, AL 36114, US [Confirmed] — https://rdap.arin.net/registry/autnum/460, https://stat.ripe.net/data/abuse-contact-finder/data.json?resource=460

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-05 — not in Spamhaus reputation/DROP lists, NANOG archives, AbuseIPDB, VirusTotal, or Scamalytics searches; consistent with a legacy, low-activity DoD-allocated ASN rather than an actively routed commercial network

Network & routing

Network type

government/military network (U.S. Air Force / DoD); not a commercial ISP, hosting provider, or enterprise network [Confirmed] — https://rdap.arin.net/registry/autnum/460, https://bgp.he.net/AS460

Size

dormant — 0 IPv4 prefixes / 0 IPv4 addresses, 0 IPv6 prefixes; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — https://stat.ripe.net/data/routing-status/data.json?resource=460, https://asrank.caida.org/api/v2/restful/asns/460

Routing/peering

NOT announced — 0/325 IPv4 RIS peers and 0/321 IPv6 RIS peers currently see this ASN; CAIDA degree total 0 (customer 0, peer 0, provider 0); no public peering policy exists for this closed government resource

[Confirmed] — https://stat.ripe.net/data/routing-status/data.json?resource=460, https://asrank.caida.org/api/v2/restful/asns/460

Historical routing

last announced 199.251.0.0/24, seen 2001-09-26 to 2001-10-23; no announcements since [Confirmed] — https://stat.ripe.net/data/routing-status/data.json?resource=460

RPKI

not assessable — AS460 announces no prefixes, so there are no ROAs to validate against; RIPEstat's rpki-validation endpoint requires a prefix parameter [Unknown] — https://stat.ripe.net/data/rpki-validation/data.json?resource=460

Notable usage

registered within the historical AS379–AS508 DoD block (AFCONC-BLOCK1-AS) allocated 1989-08-04; historically associated with Air Force network operations at Gunter Annex, Maxwell AFB, AL; no dedicated public operator website exists beyond the general af.mil domain [Likely] — https://rdap.arin.net/registry/autnum/460, https://www.airforcebes.af.mil/News/Display/Article/3221219/commercial-internet-solution-for-gunter-annex-program-developers/

Related ASNs

part of the AFCONC-BLOCK1-AS block, AS379–AS508, all registered to org 7ESG [Confirmed] — https://rdap.arin.net/registry/autnum/460

Geo footprint

US (CAIDA country iso=US; corroborated by RDAP registrant address at Maxwell AFB, AL and admin/tech contact at Whitehall, OH) [Confirmed] — https://asrank.caida.org/api/v2/restful/asns/460

Last changed (registry)

2008-06-06 (ARIN RDAP autnum top-level "last changed" event; predates later nested entity-record updates) [Confirmed] — https://rdap.arin.net/registry/autnum/460

Analyst note

Encountered as a dormant legacy ASN inside a large block-registered DoD object (AFCONC-BLOCK1-AS, AS379–AS508); ARIN RDAP returns the same shared autnum record for any ASN in this range. IANA RFC reference: none found/applicable — left blank rather than invented.