AS422

AS422 is a legacy autonomous system number registered under ARIN to Air Force Systems Networking, a U.S. Department of the Air Force / DoD unit. It does not carry its own standalone RDAP autnum record; instead it falls inside the contiguous ARIN block AFCONC-BLOCK1-AS (handle AS379, startAutnum 379 through endAutnum 508), whose registrant vCard reads "Air Force Systems Networking" at 501 East Moore Dr., Bldg 884, Rm 1100, Gunter Annex, Maxwell AFB, Alabama, with administrative and abuse contact routed through DISA-Columbus (Whitehall, Ohio). The key triage point for AS422 is that it is effectively dormant today: every routing source consulted (RIPEstat, CAIDA AS Rank) agrees it announces zero IPv4 and zero IPv6 prefixes, has zero visible BGP peers, zero upstreams, and zero customers. RIPEstat reports announced=false, and CAIDA gives it a bottom-of-table AS rank of 79,459 with a singleton customer cone (the ASN itself, 0 prefixes, 0 addresses) and an AS degree of 0 across customer, peer, and provider. Its only recorded routing history is the prefix 143.230.0.0/16, first seen 2000-08-18 and last seen 2002-05-02 — it has not been announced since. RPKI posture cannot be assessed because there are no active originations and therefore no ROAs. No notable public abuse signal was found as of 2026-07-02 — not in Spamhaus, abuse.ch, AbuseIPDB, IPQualityScore, Scamalytics, or NANOG archives — which is consistent with an unannounced military-block ASN that exposes no routed IP space to generate abuse reports against.

Operator

Air Force Systems Networking (U.S. Department of the Air Force / DoD; ARIN block registrant handle 7ESG), inside block AFCONC-BLOCK1-AS (AS379–AS508) [Confirmed] — ARIN RDAP autnum/422 (block-level record, handle AS379)

Country / RIR

US, ARIN [Confirmed] — RIPEstat abuse-contact-finder (authoritative_rir: arin)

Allocated

1989-08-04 (ARIN registry date from the top-level autnum registration event of the block record; NOT an IEEE date — IEEE publishes no ASN registration dates); last changed 2008-06-06 [Confirmed] — ARIN RDAP autnum/422 top-level events. Block-level date (inherited from the AS379–AS508 block, as AS422 has no distinct per-ASN sub-record); nested entity events (REGIS10-ARIN 2009-06-24, 7ESG 2008-06-05) are POC/org-level decoys and excluded.

Org status

active (block-level ARIN registration status for AS379–AS508); routing status dormant (no live BGP announcements observed for AS422 specifically) [Confirmed] — ARIN RDAP autnum/422, bgp.he.net/AS422

Contacts

abuse disa.columbus.ns.mbx.arin-registrations@mail.mil; registration tel +1-844-347-2457 ext2; registrant address Maxwell AFB, AL; POC/admin address DISA-Columbus, Whitehall, OH [Confirmed] — RIPEstat abuse-contact-finder, ARIN RDAP autnum/422

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-02 — not in Spamhaus, abuse.ch, AbuseIPDB, IPQualityScore, Scamalytics, or NANOG archives; absence of signal is expected for an unannounced ASN with no routed attack surface, not evidence of a vetted clean history under active announcement

Network & routing

Network type

U.S. federal government / military internal ASN allocation (non-commercial, DoD-administered legacy block); registered via DISA (Defense Information Systems Agency) Columbus registration services [Confirmed] — ARIN RDAP autnum/422

Size

dormant — 0 IPv4 prefixes / 0 IPv4 addresses and 0 IPv6 prefixes; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — RIPEstat routing-status / CAIDA AS Rank (2026-07)

Routing/peering

NOT announced — RIPEstat as-overview announced=false; 0 RIS peers seeing it (0/324 v4, 0/320 v6); CAIDA degree total 0 (customer 0, peer 0, provider 0); no upstreams or peers visible [Confirmed]. No PeeringDB network record exists (asn=422 returned 404) [Confirmed] — peeringdb.com/api/net?asn=422

RPKI

not assessable — AS422 announces no prefixes, so there are no ROAs to validate (RIPEstat rpki-validation requires a prefix parameter; none exists) [Unknown]

Notable usage

none currently observed — 0 prefixes, 0 peers. Only historical origination is 143.230.0.0/16, first seen 2000-08-18, last seen 2002-05-02; not announced since [Confirmed] — RIPEstat routing-status

Related ASNs

sibling ASNs in the same AFCONC-BLOCK1-AS block (AS379–AS508) share the "Air Force Systems Networking" registrant (e.g. AS385, AS399, AS448, AS466) [Likely] — bgp.he.net/AS422 and sibling lookups

Analyst note

Encountered as a dormant legacy military-block ASN with no standalone RDAP record; allocated_date is the first-party ARIN block registration event (1989-08-04) and is recorded, not nulled. Clean, inactive ASN.