AS454

AS454 is a legacy autonomous system number registered under ARIN to Air Force Systems Networking, a U.S. Department of Defense network range administered by the Defense Information Systems Agency (DISA). It does not carry its own standalone RDAP/WHOIS object: it falls inside a single ARIN block registration, AFCONC-BLOCK1-AS, whose autnum record spans AS379 through AS508 (handle AS379, startAutnum 379, endAutnum 508). The registrant organization is "Air Force Systems Networking" (ARIN org handle 7ESG, address Maxwell AFB, AL), and the administrative, technical, and abuse role is held by the DISA-Columbus registration group (REGIS10-ARIN, a mail.mil contact). The key triage point for AS454 is that it is effectively dormant today: every routing source consulted agrees it announces zero IPv4 and zero IPv6 prefixes and has zero visible BGP peers, upstreams, and customers. RIPEstat reports announced=false with no prefixes in the current window; historically it was seen announcing 192.43.197.0/24 on 2000-08-18 and last seen announcing 131.56.0.0/16 on 2003-01-16, with no announcements since 2003. CAIDA AS Rank places it at position 79,459 with a singleton customer cone (1 ASN, 0 prefixes, 0 addresses) and zero degree in every category. RPKI posture is not assessable 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, AbuseIPDB, CleanTalk, or NANOG archives — consistent with a clean, dormant government block that is not routing on the public Internet.

Operator

Air Force Systems Networking (U.S. Department of Defense; ARIN org handle 7ESG, Maxwell AFB, AL); admin/tech/abuse held by DISA-Columbus registration group [Confirmed] — https://rdap.arin.net/registry/autnum/454, https://rdap.arin.net/registry/entity/7ESG

Country / RIR

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

Allocated

1989-08-04 (ARIN RDAP autnum TOP-LEVEL registration event on the AFCONC-BLOCK1-AS block covering AS379–AS508; a first-party RIR registry fact, NOT an IEEE date); last changed 2008-06-06 [Confirmed] — https://rdap.arin.net/registry/autnum/454

Org status

active registration in ARIN's registry (parent AFCONC-BLOCK1-AS record shows status "active"), but no current public routing activity attributable to AS454 [Confirmed] — https://rdap.arin.net/registry/autnum/454

Contacts

disa.columbus.ns.mbx.arin-registrations@mail.mil (abuse/admin/tech); registrant address 501 East Moore Dr., Bldg 884 Rm 1100, Gunther Annex, Maxwell AFB, AL 36114; admin contact DISA-Columbus, 300 North James Road, Whitehall, OH 43213 [Confirmed] — https://rdap.arin.net/registry/entity/7ESG

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-02 — not in Spamhaus, AbuseIPDB, CleanTalk ASN stats, or NANOG archives; consistent with a dormant/unrouted government block [Unknown — absence-of-signal on a dormant ASN, not a clean-under-announcement finding] — https://www.spamhaus.org/blocklists/spamhaus-blocklist/, https://cleantalk.org/blacklists/asn

Network & routing

Network type

U.S. military/government network (DoD — Air Force-designated ASN block administered by DISA); legacy/inactive, not a commercial ISP, transit, or content network [Confirmed] — https://rdap.arin.net/registry/autnum/454, https://rdap.arin.net/registry/entity/7ESG

Size

dormant — 0 IPv4 prefixes / 0 IPv4 addresses and 0 IPv6 prefixes; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses — RIPEstat routing-status / CAIDA AS Rank (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, peers, or IXP membership in any source [Confirmed]. No public peering policy exists for this block [Confirmed via absence]

RPKI

not assessable — AS454 announces no prefixes, so there are no ROAs to validate; RIPEstat rpki-validation was skipped (no announced prefix to check) [Confirmed]

Notable usage

none observed today — historically seen announcing 192.43.197.0/24 (first 2000-08-18) and 131.56.0.0/16 (last 2003-01-16); no announcements since 2003 [Confirmed] — RIPEstat routing-status

Related ASNs

part of the AFCONC-BLOCK1-AS block spanning AS379–AS508 (all under org handle 7ESG) [Confirmed] — https://rdap.arin.net/registry/autnum/454

Analyst note

Encountered as a dormant legacy government ASN with no standalone RDAP object — all metadata is inherited from the block-level AFCONC-BLOCK1-AS record (AS379–AS508). No independent commercial operator, website, or peering-policy page exists to fetch. Clean, inactive DoD block.