AS486

AS486 is a legacy autonomous system number registered under ARIN within the block-registered range AS379–AS508, publicly named AFCONC-BLOCK1-AS and held by Air Force Systems Networking (AFSN), a U.S. Air Force / DoD network-engineering program rather than an incorporated commercial entity. ARIN's RDAP record for the containing block returns a top-level autnum registration event dated 1989-08-04, with a last-changed event of 2008-06-06; these are first-party registry facts distinct from the nested organization (7ESG, registered 2008-06-05) and point-of-contact (REGIS10-ARIN, registered 2009-06-24) events, which are not the allocation date. Today AS486 is dormant: every routing source consulted — RIPEstat, CAIDA AS Rank, and independent corroboration from IPinfo.io — agrees it announces zero IPv4 and zero IPv6 prefixes, is not visible in any of 327 IPv4 or 321 IPv6 RIS peers' tables, and carries zero CAIDA degree (no customers, peers, or providers). AFSN's public footprint is minimal, consistent with an internal military networking program: no canonical official AFSN.mil site was located, and while a PeeringDB organization for AFSN exists (org id 20118), its listed member networks (AS123, AS65, AS175, AS221, AS301) do not include AS486. No public security or abuse signal was found for AS486 as of 2026-07-10.

Operator

Air Force Systems Networking (AFSN) — U.S. Air Force / DoD network-engineering program, not an incorporated commercial entity [Confirmed] — https://rdap.arin.net/registry/autnum/486, https://rdap.arin.net/registry/entity/7ESG

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/486

Allocated

1989-08-04 (ARIN RDAP top-level autnum registration event for the containing AS379–AS508 AFCONC-BLOCK1-AS block; corroborated independently by IPinfo.io and ipip.net); last changed 2008-06-06 [Confirmed] — https://rdap.arin.net/registry/autnum/486, https://ipinfo.io/AS486

Org status

active (ARIN RDAP status for the containing AS379–AS508 block and registrant org 7ESG) [Confirmed] — https://rdap.arin.net/registry/entity/7ESG

Contacts

disa.columbus.ns.mbx.arin-registrations@mail.mil; DISA Columbus, 300 North James Road, Whitehall, OH 43213 (abuse/administrative/technical POC); registrant org address 501 East Moore Dr. Bldg 884 Rm 1100 Gunther Annex, Maxwell AFB, AL 36114

[Confirmed] — https://rdap.arin.net/registry/entity/REGIS10-ARIN

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-10 — not listed in the live Spamhaus ASN-DROP JSON feed; no "announces bogons" flag or other abuse annotation on bgp.he.net, consistent with a dormant/unrouted ASN; no NANOG or security-list discussion found

Network & routing

Network type

internal DoD/military network-engineering program — design, installation, and sustainment of Air Force classified and unclassified wired/wireless networks (base, NOSC/INOSC, and AFNET enterprise tiers); not a commercial ISP [Confirmed] — https://solutions71.com/air-force-systems-networking-afsn/

Size

dormant — 0 IPv4 and 0 IPv6 prefixes announced; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — https://stat.ripe.net/AS486, https://asrank.caida.org/asns/486, https://ipinfo.io/AS486

Routing/peering

NOT announced — 0/327 IPv4 and 0/321 IPv6 RIS peers seeing it; CAIDA degree total 0 (customer 0, peer 0, provider 0); no upstreams or peers visible in any source. Peering policy not publicly published; PeeringDB org for AFSN (org id 20118) exists but does not list AS486 among its member networks

[Confirmed] — https://stat.ripe.net/AS486, https://asrank.caida.org/asns/486, https://www.peeringdb.com/org/20118

RPKI

not assessable — AS486 announces no prefixes, so no ROAs exist to validate [Confirmed] — https://stat.ripe.net/AS486

Notable usage

AFSN provides design, implementation, and sustainment of Air Force classified/unclassified networks including JRSS and Air Force portions of JIE, CONUS/OCONUS, with Maxwell-Gunter Annex AFB (Montgomery/Maxwell AFB, AL) named as a site; this is program-level context, not a claim specific to AS486's own routed prefixes

[Likely] — https://solutions71.com/air-force-systems-networking-afsn/

Related ASNs

part of the ARIN block-registered range AS379–AS508 (AFCONC-BLOCK1-AS); sibling AS485 is enriched separately in this pipeline and shares the same operator/block [Confirmed] — https://rdap.arin.net/registry/autnum/486

Analyst note

Encountered as a dormant legacy ASN within a block-registered military range; RDAP for AS486 returns the shared AS379–AS508 block-level autnum record rather than a per-ASN record. No official website located; treat operator-site field as Unknown rather than fabricated.