AS494

AS494 is a U.S. military autonomous system number that falls within ARIN's AFCONC-BLOCK1-AS range (AS379–AS508), registered to "Air Force Systems Networking" under ARIN organization handle 7ESG. The registrant's postal address — 501 East Moore Dr., Bldg 884, Rm 1100, Gunter Annex, Maxwell AFB, Alabama — and the administrative handling by DISA-Columbus both point to a Department of Defense / U.S. Air Force network rather than a commercial ISP. The block's ARIN RDAP autnum top-level registration event dates to August 4, 1989, making this one of the older ASN allocations in the registry, consistent with its low numeric value. Operationally, AS494 is currently dark: RIPEstat shows zero announced IPv4 or IPv6 prefixes and zero visibility across all sampled RIS route-collector peers, and CAIDA AS Rank places it at rank 79,459 with a customer cone of just itself, no upstreams, and no peers. Historical routing data shows it last announced a prefix in November 2021. No public abuse or security signal was found tied to this specific ASN. Because it is a non-commercial government network, there is no public website, peering policy page, or PeeringDB net object to corroborate operational details beyond the registry record.

Operator / registrant

Air Force Systems Networking (ARIN org handle 7ESG); administered by DISA-Columbus (POC REGIS10-ARIN) [Confirmed] — https://rdap.arin.net/registry/autnum/494

Country / RIR

US, ARIN [Confirmed] — https://stat.ripe.net/AS494 (abuse-contact-finder authoritative_rir: arin)

Allocated

1989-08-04 (ARIN RDAP autnum top-level registration event for the block AFCONC-BLOCK1-AS, AS379–508); last changed 2008-06-06 [Confirmed, two angles agree] — https://rdap.arin.net/registry/autnum/494

Org status

active [Confirmed] — https://rdap.arin.net/registry/autnum/494

Contacts

abuse/admin/tech via DISA-Columbus, 300 North James Road, Whitehall, OH 43213; disa.columbus.ns.mbx.arin-registrations@mail.mil [Confirmed] — https://rdap.arin.net/registry/autnum/494

Website / peering policy

none found — no PeeringDB net object for ASN 494 and no public operator website (non-commercial government network) [Unknown] — https://www.peeringdb.com/api/net?asn=494

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-10 in Spamhaus, NANOG archives, or general threat-intel search specific to AS494

Network & routing

Network type

U.S. military/government (Department of Defense, Air Force) — inferred from registrant address at Gunter Annex, Maxwell AFB and DISA administration; not a self-declared field [Likely] — https://rdap.arin.net/registry/autnum/494

Size / routing

currently NOT announced — 0 IPv4 and 0 IPv6 prefixes, 0/327 RIS peers seeing v4, 0/321 seeing v6 [Confirmed] — https://stat.ripe.net/AS494

CAIDA metrics

AS rank 79,459; not a clique member; not seen in topology; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses; degree 0/0/0 (customer/peer/provider) [Confirmed] — https://asrank.caida.org/asns?asn=494

RPKI posture

not assessable — RIPEstat rpki-validation was skipped because it requires a specific prefix parameter and RPKI validation is prefix-scoped, not AS-scoped [Unknown] — https://stat.ripe.net/AS494

Notable usage

member of the AFCONC-BLOCK1-AS block (AS379–508); no source specifically confirms AS494's individual current mission or unit beyond the general Air Force Systems Networking registration [Unknown] — https://rdap.arin.net/registry/autnum/494

Historical announcements

first seen announcing 132.24.0.0/16 on 2001-09-26; last seen announcing 164.117.199.0/24 on 2021-11-18 [Confirmed] — https://stat.ripe.net/AS494

Analyst note

legacy 1989 DoD/Air Force ASN allocation, dormant in the DFZ since late 2021; registry data (ARIN RDAP, RIPEstat, CAIDA) is internally consistent and first-party; operational/mission detail is genuinely unavailable outside the registry.