AS458

AS458 is a legacy autonomous system number that falls within ARIN's AFCONC-BLOCK1-AS range (AS379–AS508), a single flat RDAP object covering 130 consecutive ASNs rather than one dedicated per-ASN registration. The registrant organization is "Air Force Systems Networking" (ARIN org handle 7ESG), a U.S. Air Force / Department of Defense entity with a registered address at Maxwell AFB, Alabama, and an administrative/abuse contact (REGIS10-ARIN) tied to DISA-Columbus in Whitehall, Ohio. The block's top-level RDAP autnum object shows a registration event dated 1989-08-04 and a last-changed event dated 2008-06-06 — these are the authoritative dates for the block as a whole, distinct from two decoy entity-level date pairs nested inside the record (the REGIS10-ARIN POC entity and the 7ESG registrant-org entity each carry their own, later, registration/last-changed timestamps that do not describe the ASN's own allocation). Operationally, AS458 is dormant: RIPEstat reports it is not currently announced, with zero IPv4 and zero IPv6 prefixes in the live table, and CAIDA's topology data shows a customer cone of exactly one ASN (itself), zero peers, zero upstreams, and no IXP membership. Historical BGP visibility exists only from a brief window in 2001. No dedicated operator website, PeeringDB network record, or public peering policy was found for this specific ASN, and no notable public abuse signal turned up in Spamhaus ASN-DROP, Hurricane Electric, or AbuseIPDB checks — consistent with an inactive government-held numbering resource rather than an actively managed commercial network.

RIR / status

ARIN; RDAP object status "active" (administratively active; operationally dormant — no announced prefixes) [Confirmed] — https://rdap.arin.net/registry/autnum/458

Allocated / last updated

allocated_date 1989-08-04 (block top-level RDAP "registration" event); last_updated 2008-06-06 (block top-level "last changed" event). Two decoy entity-level date pairs were correctly excluded: REGIS10-ARIN POC entity (registration 2009-06-24, last changed 2026-02-12) and the 7ESG registrant-org entity (registration 2008-06-05, last changed 2025-03-13) — neither describes the ASN's own allocation

[Confirmed] — https://rdap.arin.net/registry/autnum/458

Abuse contact

disa.columbus.ns.mbx.arin-registrations@mail.mil

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-05 in Spamhaus ASN-DROP, Hurricane Electric BGP Toolkit (0 prefixes, 0 peers), or ipinfo.io; AbuseIPDB's dedicated ASN report page could not be confirmed (404/403 on both URL forms tried) — absence of signal likely reflects dormancy rather than a vetted-clean record

Network & routing

Network type

legacy U.S. government/military ASN block, not a commercial ISP, content, or enterprise network [Confirmed] — https://rdap.arin.net/registry/autnum/458

Peering policy

Unknown / not publicly documented — no PeeringDB record and no operator page describing a peering policy for this ASN specifically [Unknown]

Routing status

not currently announced; 0 IPv4 and 0 IPv6 prefixes in RIPEstat's live window (2026-06-21 to 2026-07-05); 0 of 325 v4 RIS peers and 0 of 321 v6 RIS peers see any route; historical-only visibility from 2001-09-27 to 2001-10-23 [Confirmed] — https://stat.ripe.net/AS458

Customer cone / topology

CAIDA cone = 1 ASN (itself), 0 prefixes, 0 addresses; asnDegree total/customer/peer/provider all 0; not a clique member; no IXP [Confirmed] — https://asrank.caida.org/asns/458

AS rank (CAIDA)

79459 [Confirmed] — https://asrank.caida.org/asns/458

RPKI posture

not assessable — RIPEstat skipped RPKI validation (no prefix supplied) and AS458 has zero current announcements, so there is no route-to-ROA relationship to validate [Confirmed] — https://stat.ripe.net/AS458

Geo footprint

registrant org at Maxwell AFB, AL; admin/abuse contact (DISA-Columbus) at Whitehall, OH; CAIDA lists country US with unresolved (0,0) coordinates [Confirmed] — https://rdap.arin.net/registry/autnum/458

ASN

AS458 [Confirmed] — https://rdap.arin.net/registry/autnum/458

Registry name / block

AFCONC-BLOCK1-AS, a flat RDAP object spanning AS379–AS508 (startAutnum 379, endAutnum 508); ARIN returns one block-level record rather than a per-ASN object for AS458 [Confirmed] — https://rdap.arin.net/registry/autnum/458

Registrant org

Air Force Systems Networking (ARIN org handle 7ESG), U.S. Air Force / DoD; address 501 East Moore Dr., Bldg 884 Rm 1100, Gunther Annex, Maxwell AFB, AL 36114 [Confirmed] — https://rdap.arin.net/registry/autnum/458

Official website / PeeringDB

Unknown — no dedicated ASN-level or organization website identified; no PeeringDB net record exists for AS458; the stale org-level PeeringDB record (org/20118, last updated 2018) lists a different, non-overlapping set of ASNs [Unknown] — https://www.peeringdb.com/org/20118

Analyst note

block-level RDAP object (AS379–AS508) rather than per-ASN; dormant since at least 2001; no operator-run web presence found for this specific ASN.