AS449

AS449 is a legacy autonomous system number registered under ARIN to Air Force Systems Networking, a U.S. Department of the Air Force network organization associated with the 754th Electronic Systems Group at Maxwell AFB — Gunter Annex, Alabama. It sits inside the block-allocated AFCONC-BLOCK1-AS range (AS379–AS508), and ARIN's per-ASN RDAP endpoint for AS449 resolves to that single parent block record rather than a distinct per-ASN object — expected behavior for legacy DoD block allocations, cross-confirmed against third-party mirrors that independently show the same org name and date for AS449 specifically. The key triage point is that AS449 is effectively dormant today. RIPEstat, CAIDA AS Rank, and bgp.he.net agree it announces zero IPv4 and zero IPv6 prefixes, is visible to no RIS peers (0/325 v4, 0/321 v6), and has no upstreams, peers, or customers. Its CAIDA rank of 79,459 sits near the bottom of the global ranking and its customer cone is a singleton. bgp.he.net reports it has not been visible in the global routing table since April 21, 2018. 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 SBL/DROP/ASN-DROP, threat feeds, or NANOG archives — consistent with a clean, dormant government ASN.

Operator

Air Force Systems Networking (org handle 7ESG; associated with the 754th Electronic Systems Group, U.S. Air Force, Maxwell AFB — Gunter Annex, AL 36114) [Confirmed] — ARIN RDAP autnum/449

Country / RIR

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

Allocated

1989-08-04 (ARIN RDAP autnum TOP-LEVEL registration event for the AFCONC-BLOCK1-AS block covering AS449 — a first-party RIR fact, NOT an IEEE date); last changed 2008-06-06 [Confirmed] — ARIN RDAP autnum top-level events

Org status

active per ARIN registry status field (parent AFCONC-BLOCK1-AS record marked active), but operationally dormant — no visible BGP announcements since April 2018 [Confirmed] — ARIN RDAP autnum/449, bgp.he.net/AS449

Contacts

abuse/admin/tech disa.columbus.ns.mbx.arin-registrations@mail.mil (REGIS10-ARIN, DISA-Columbus, Whitehall, OH 43213); registrant org 7ESG at Maxwell AFB — Gunter Annex, AL 36114 [Confirmed] — ARIN RDAP autnum/449

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-02 — not in Spamhaus SBL/DROP/ASN-DROP, threat feeds, or NANOG archives; dormant ASN under a government operator

Network & routing

Network type

U.S. federal government / military network (Department of the Air Force); legacy/block-allocated and operationally dormant [Confirmed] — ARIN RDAP autnum/449, ipinfo.io/AS449

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 / bgp.he.net (2026-07)

Routing/peering

NOT announced — 0 RIS peers seeing it (0/325 v4, 0/321 v6); CAIDA degree total 0 (customer 0, peer 0, provider 0); no upstreams or peers visible; not an IXP or clique member [Confirmed]. No PeeringDB net record exists (peeringdb.com/api/net?asn=449 → 404); no published peering policy

[Confirmed as absent] — RIPEstat routing-status, CAIDA AS Rank, peeringdb.com/org/20118

RPKI

not assessable — AS449 announces no prefixes, so there are no ROAs to validate; RIPEstat rpki-validation was skipped (requires a prefix parameter) [Unknown]

Notable usage

part of the AFCONC-BLOCK1-AS range (AS379–AS508) allocated to Air Force Systems Networking / 754th Electronic Systems Group; dormant since ~April 21, 2018 per bgp.he.net [Confirmed]. Pre-2018 BGP paths showed anomalous sightings via AS39819 (Optima Telecom, Kyrgyzstan) and AS25478/AS50384 (iHome LLC, Russia) — consistent with route-leak / observation artifacts, NOT operator-endorsed peering

[Likely] — bgp.he.net/AS449

Analyst note

Block-allocated legacy DoD ASN. ARIN's per-ASN RDAP resolves to the single parent AFCONC-BLOCK1-AS record (AS379–AS508); all dates/org data are that block record's and are the only first-party RIR data for AS449, cross-confirmed by bgp.he.net and ipinfo.io. Clean, dormant ASN.