AS718

AS718 is a dormant, unrouted legacy autonomous system registered to the United States Department of Defense (DoD) under ARIN's DNIC (Defense/military) block, currently announcing zero IPv4 and zero IPv6 prefixes anywhere in the public routing table.

The ARIN RDAP registry lists the autnum's RIR handle as DNIC-AS-00718, status active, with contacts under "Network DoD" at DISA-Columbus (300 North James Road, Whitehall, OH 43213) and the registrant org listed as USDDD (3990 E. Broad Street, Columbus, OH 43218).

Routing data is unanimous across sources: RIPEstat shows 0 of 328 RIS peers seeing it on IPv4 and 0 of 324 on IPv6; CAIDA AS Rank places it at 79,459 with zero total degree (no customers, peers, or providers) and a customer cone of just itself, 0 prefixes, 0 addresses; bgp.tools and bgp.he.net independently corroborate zero originated prefixes and zero observed peers. RPKI posture is not assessable since there are no announced routes to validate.

The autnum's own top-level RDAP events[] carries only a "last changed" entry (2025-09-12); it has no top-level "registration" event, so the allocation date is genuinely absent from the authoritative record. A separate research angle surfaced a 2007-01-12 date, but that belongs to the nested USDDD *entity* object, not the autnum itself, and per this project's decoy rule should not be substituted in; it is recorded here only as a caveat.

No operator-official page documenting AS718's specific purpose was located — DISA's own site renders as an unpopulated JavaScript shell via automated fetch — and PeeringDB has no net object for this ASN (404), consistent with a non-commercial, non-advertising government allocation rather than an actively operated network.

Operator

United States Department of Defense (DoD); ARIN RIR handle DNIC-AS-00718 [Confirmed] — https://rdap.arin.net/registry/autnum/718

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/718

Allocated

Unknown — the autnum's top-level RDAP events[] contains no "registration" event, only a "last changed" event dated 2025-09-12; independently re-verified with a full (non-truncated) re-fetch [Confirmed for the absence]. A 2007-01-12 date exists but is attached to the nested USDDD entity object, not the autnum top-level, and is excluded as a per-instruction decoy

[Likely misattributed if used] — https://rdap.arin.net/registry/autnum/718

Org status

active per ARIN RDAP autnum status field [Confirmed] — https://rdap.arin.net/registry/autnum/718

Contacts

disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil; tel +1-844-347-2457 ext2; DISA-Columbus, 300 North James Road, Whitehall, OH 43213 [Confirmed] — https://stat.ripe.net/AS718, https://rdap.arin.net/registry/autnum/718

Security/abuse context (NEUTRAL, DATED, PARTIAL)

no notable public abuse signal found as of 2026-07-25; Talos and Spamhaus lookups errored rather than confirming clean; ASN is currently unrouted, limiting abuse surface

Network & routing

Network type

Unrouted/legacy DoD DNIC-block ASN; not publicly documented in operator terms [Likely] — https://bgp.he.net/AS718, https://rdap.arin.net/registry/autnum/718

Size

dormant — 0 IPv4 prefixes / 0 IPv4 addresses, 0 IPv6 prefixes; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — https://stat.ripe.net/AS718, https://asrank.caida.org/asns/718

Routing/peering

NOT announced — 0/328 RIS peers (v4), 0/324 (v6); CAIDA degree total 0 (customer 0, peer 0, provider 0); no upstreams or peers in any source; no PeeringDB net object (404) [Confirmed] — https://stat.ripe.net/AS718, https://asrank.caida.org/asns/718, https://www.peeringdb.com/api/net?asn=718

RPKI

not assessable — zero announced prefixes means no ROAs exist to validate [Confirmed] — https://stat.ripe.net/AS718

Notable usage

Unknown — no operator-official or third-party source documents a specific purpose for AS718; DISA's own site is an unrendered JS SPA inaccessible to automated fetch [Unknown] — https://rdap.arin.net/registry/autnum/718

Related ASNs

Unknown — no confirmed sibling ASNs within the DoD DNIC block were verified this pass [Unknown]

Analyst note

AS718 is a fully dormant DoD-registered ASN with no announced routes across every routing source checked. Two research angles disagreed on allocated_date (2007-01-12 vs. absent); the routing angle independently re-verified the RDAP autnum's top-level events[] and confirmed no registration event exists there, so allocated_date is recorded as null rather than substituting the entity-level date. WebSearch was unavailable all session (budget exhausted), so notable-usage and deeper abuse-history research is incomplete and should be re-run in a future cycle.