AS459

AS459 is an ARIN-registered autonomous system number belonging to the AFCONC-BLOCK1-AS bulk block (AS379 through AS508), registered to the organization handle 7ESG, "Air Force Systems Networking," a U.S. Department of Defense / U.S. Air Force entity. The registrant address on file is 501 East Moore Drive, Building 884, Gunter Annex, Maxwell AFB, Alabama 36114, with administrative, technical, and abuse contact delegated to a group named "Registration" (handle REGIS10-ARIN) at 300 North James Road, Whitehall, OH 43213 — an address associated with the Defense Information Systems Agency's Columbus field office (DISA-Columbus). The abuse contact email is disa.columbus.ns.mbx.arin-registrations@mail.mil. AS459 carries ARIN RDAP status "active," but it is operationally dormant: every routing data source consulted — RIPEstat, CAIDA AS Rank, and bgp.he.net-style aggregation — agrees it currently announces zero IPv4 and zero IPv6 prefixes, has zero visible BGP peers, zero upstreams, and zero customers. The only historical routing activity on record is a single prefix, 198.220.189.0/24, announced for roughly four weeks in September–October 2001; nothing has been seen since. CAIDA's customer cone for AS459 is a singleton containing only itself, with zero prefixes and zero addresses, and its CAIDA AS rank (79,459) places it at the very bottom of the global ranking — consistent with an unannounced, inactive allocation rather than an operating network. No public peering policy, PeeringDB record, or operator website exists for AS459, which is expected: this is internal U.S. military infrastructure administered through ARIN by DISA-Columbus, not a commercial network operator with public-facing documentation. No notable public abuse or threat-feed signal was found as of 2026-07-05 across Spamhaus, NANOG archives, and related sources, though this null result should be read in light of the ASN's inactive status rather than as a confirmed clean operational record.

Operator

Air Force Systems Networking (ARIN organization handle 7ESG); part of the AFCONC-BLOCK1-AS bulk ASN block (AS379–AS508), U.S. Department of Defense / U.S. Air Force [Confirmed] — https://rdap.arin.net/registry/autnum/459

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/459

Allocated

1989-08-04 (ARIN RDAP autnum top-level registration event for the AFCONC-BLOCK1-AS block covering AS459); last changed 2008-06-06 [Confirmed — block-level RIR registry fact, not a per-ASN sub-record; ARIN serves the covering block's top-level events[] for individual ASNs within this bulk range] — https://rdap.arin.net/registry/autnum/459

Org status

RDAP status "active," but operationally dormant/not announcing routes; registrant Air Force Systems Networking (org handle 7ESG), Maxwell AFB, AL [Confirmed] — https://rdap.arin.net/registry/autnum/459

Contacts

disa.columbus.ns.mbx.arin-registrations@mail.mil (abuse/admin/technical, via REGIS10-ARIN, DISA-Columbus); phone +1-844-347-2457 ext2 [Confirmed] — https://rdap.arin.net/registry/autnum/459

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-05 across Spamhaus, CleanTalk, and NANOG archives; absence is consistent with the ASN's inactive/non-routed status rather than a confirmed clean operational record [Likely]

Network & routing

Network type

U.S. military / Department of Defense internal networking infrastructure (Air Force); not a commercial ISP, content network, or transit provider [Confirmed] — https://rdap.arin.net/registry/autnum/459

Size

dormant — 0 IPv4 prefixes / 0 IPv4 addresses and 0 IPv6 prefixes currently announced; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — https://stat.ripe.net/AS459, CAIDA ASRank

Routing/peering

NOT currently announced — 0 of 325 RIS peers see any IPv4 route, 0 of 321 see any IPv6 route; CAIDA degree total 0 (customer 0, peer 0, provider 0); no upstreams or peers visible; no PeeringDB record [Confirmed] — https://stat.ripe.net/AS459, https://asrank.caida.org/asns/459

Historical routing

single prefix 198.220.189.0/24 announced briefly, first seen 2001-09-26, last seen 2001-10-23; no announcements observed since [Confirmed] — https://stat.ripe.net/AS459

RPKI

not assessable in this pass — RIPEstat rpki-validation requires a specific prefix parameter, which was not supplied; cannot state ROA presence/validity without a targeted re-query [Unknown]

Notable usage

none observed; long-dormant U.S. federal (Air Force/DISA) ASN allocation with no current routing activity [Confirmed] — https://asrank.caida.org/asns/459

Related ASNs

part of the AFCONC-BLOCK1-AS block, AS379–AS508 [Confirmed] — https://rdap.arin.net/registry/autnum/459

Analyst note

RDAP's top-level autnum object for this query reports handle "AS379" with startAutnum 379 / endAutnum 508 — ARIN is serving the covering bulk-block record for AS459 rather than a distinct per-ASN sub-record, which is expected behavior for ASNs inside a delegated range and does not indicate a data error. RIPEstat and CAIDA data are keyed unambiguously to resource "459."