Autonomous system detail

AS480

Not announced

Operated by AFCONC-BLOCK1-AS - Air Force Systems Networking.

Summary

// analyst note
Legacy U.S. Air Force / DISA block allocation (AS379-AS508), currently unrouted. RIPEstat and CAIDA independently agree on zero announcements, zero peers, singleton customer cone. allocated_date is the ARIN RDAP autnum top-level registration event for the block, per instructions treated as a first-party RIR fact and recorded, not nulled.
// security note
NEUTRAL/DATED: no notable public abuse signal found as of 2026-07-10 across general web, NANOG, and hijack/spamhaus queries; direct Spamhaus ASN-DROP query returned HTTP 403 (inconclusive, not a verified clean check).
IPv4 prefixes
0
~0 addresses
IPv6 prefixes
0
—
Peer networks
0
0 up · 0 down
IANA block
1-1876
Assigned by ARIN
[ 01 ] — Context

About this ASN.

Updated  ·  Confidence: High

AS480 is a U.S. Air Force / Department of Defense autonomous system number that falls within ARIN's block delegation AS379–AS508, registered under the name AFCONC-BLOCK1-AS to the organization "Air Force Systems Networking" (ARIN org handle 7ESG), based at Maxwell AFB, Alabama, with abuse and administrative contacts routed through DISA-Columbus in Whitehall, Ohio. The block-level RDAP registration event dates to 1989-08-04, making this a legacy Cold War-era military allocation; the record was last changed 2008-06-06 at the registry. Operationally, AS480 is dormant: RIPEstat shows zero currently announced IPv4 or IPv6 prefixes and zero visibility across all 326 v4 / 321 v6 RIS peers, and CAIDA independently confirms a "seen: false" status with an empty customer cone (0 prefixes, 0 addresses) and zero AS-degree in every direction (customer, peer, provider). The only historical routing footprint on record is a brief self-originated announcement of 132.44.0.0/16, first seen 2001-09-26 and last seen 2001-10-23 — a roughly four-week window over two decades ago, with no announcements observed since. No PeeringDB net record exists for AS480, and no notable public abuse or threat-feed signal was found in general web, NANOG archive, or Spamhaus-style searches, consistent with an inactive legacy DoD block rather than an actively operated network.

Operator
Air Force Systems Networking (ARIN org handle 7ESG), 501 East Moore Dr. Bldg 884 Rm 1100, Gunther Annex, Maxwell AFB, AL 36114, US [Confirmed] — https://whois.arin.net/rest/org/7ESG
Country / RIR
US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/480
Block context
AS480 has no standalone RDAP record; it falls within ARIN block AS379–AS508, RDAP handle AS379, named AFCONC-BLOCK1-AS [Confirmed] — https://rdap.arin.net/registry/autnum/480
Allocated
1989-08-04 (ARIN RDAP autnum top-level "registration" event on the AS379–AS508 block record covering AS480 — read from the top-level events[], not the nested entity decoys); last changed 2008-06-06 [Confirmed] — https://rdap.arin.net/registry/autnum/480
Org status
active (ARIN block record status) [Confirmed] — https://rdap.arin.net/registry/autnum/480
Contacts
REGIS10-ARIN "Registration (DISA-Columbus)", disa.columbus.ns.mbx.arin-registrations@mail.mil, +1-844-347-2457 ext 2 [Confirmed] — https://rdap.arin.net/registry/autnum/480
Website
Unknown / none published — no URL field in the ARIN org record and no independent public operator site found [Confirmed sourced absence] — https://whois.arin.net/rest/org/7ESG

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found across general web search, NANOG archives, and hijack/route-leak/spamhaus/botnet queries as of 2026-07-10; direct Spamhaus ASN-DROP page query returned HTTP 403 (bot-blocked), so that source is Unknown/inconclusive rather than a verified clean check

[Likely] — https://bgp.he.net/AS480, https://www.spamhaus.org/blocklists/do-not-route-or-peer/

Network & routing

Network type
U.S. Air Force / DoD internal network infrastructure block, administered via DISA-Columbus registration services; not a commercial ISP [Confirmed] — https://rdap.arin.net/registry/autnum/480
Size / routing
dormant — 0 IPv4 and 0 IPv6 prefixes currently announced, 0/326 v4 and 0/321 v6 RIS peers seeing it, 0 observed BGP neighbours [Confirmed] — RIPEstat routing-status / announced-prefixes (2026-07-10)
Historical routing
only known announcement is 132.44.0.0/16, first seen 2001-09-26, last seen 2001-10-23 [Confirmed] — RIPEstat routing-history (stat.ripe.net/AS480)
CAIDA AS rank
79459; seen=false; clique_member=false; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses; AS-degree total/customer/peer/provider all 0 [Confirmed] — https://asrank.caida.org/asns/480
Peering
no PeeringDB net record for AS480 (API query returned 404); org 20118 lists other Air Force ASNs (AS123, AS65, AS175, AS221, AS301) but not AS480 [Confirmed sourced absence] — https://www.peeringdb.com/api/net?asn=480
RPKI
not assessable — no currently announced prefixes to validate against [Unknown] — https://stat.ripe.net/AS480#tabId=rpki-validation
Analyst note
Legacy DoD block allocation with no standalone RDAP record of its own (part of the AS379–AS508 block). Two independent routing datasets (RIPEstat, CAIDA) corroborate zero current announcements; the only routing history is a ~4-week 2001 self-announcement of 132.44.0.0/16.
[ 02 ] — Announced prefixes

What this network routes.

0 prefixes total · RIPEstat data · cached, not real-time
// IPv4 prefixes0
No IPv4 prefixes announced.
// IPv6 prefixes0
No IPv6 prefixes announced.
[ 03 ] — Notable peers & upstreams

Who it talks to.

0 observed neighbours
Neighbour data unavailable from public BGP collectors.