AS149

AS149 is a low-numbered, early-assigned Autonomous System Number registered under ARIN to the United States Department of Defense (DoD) and operated by the Defense Information Systems Agency (DISA) out of Columbus, Ohio. ARIN carries it under the AS name DNIC-AS-00149, with org handle USDDD and an administrative/technical contact at the DoD Network Information Center (the DISA NIC). The "DNIC" prefix reflects its lineage in the Defense Network Information Center naming scheme that DISA uses for the military's address and ASN holdings. Routing-wise, AS149 is a tightly closed government stub: public BGP data shows roughly 14 IPv4 prefixes (about 24,064 addresses) and no IPv6, all in the legacy 214.x and 215.x DoD Class A space — ranges that several monitors still flag as bogons because they were long treated as reserved or non-globally-routable. Its only observed upstreams and peers are other internal DoD ASNs (AS367 and AS27065); there is no commercial transit, no IXP presence, and no PeeringDB record. No RPKI ROAs are published for its prefixes, leaving them RPKI-unknown. No notable public abuse signal was found as of June 2026: as a sovereign government defense network rather than a commercial hoster, it does not appear on Spamhaus ASN-DROP and is not cited in public threat-intelligence or NANOG discussion. This is a clean, closed federal/military ASN.

Operator

United States Department of Defense (DoD), operated by DISA (Defense Information Systems Agency); ARIN OrgId USDDD, registrant address 3990 E. Broad Street, Columbus, OH 43218 [Confirmed] — ARIN RDAP

Country / RIR

US, ARIN [Confirmed] — ARIN RDAP

Allocated

ARIN ASN registration event 1988-01-04 (an early/legacy assignment shown at registry level; this is the ARIN WHOIS/RDAP date, not attributed to IEEE); ASN record last changed 2025-09-12 [Confirmed] — ARIN RDAP

Org status

active; US federal government agency (DoD), combat-support services managed by DISA; non-commercial [Confirmed] — ARIN RDAP, en.wikipedia.org/wiki/Defense_Information_Systems_Agency

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-06-15; not on Spamhaus ASN-DROP, not cited in public threat-intel, no NANOG/community abuse threads. Absence-of-signal rated honestly (web-indexed, no direct DNSBL API call)

Network & routing

Network type

US federal government / military — enterprise defense network (DISN, Defense Information Systems Network); non-commercial closed stub [Confirmed] — RDAP holder + en.wikipedia.org/wiki/Defense_Information_System_Network

Size

~14 IPv4 prefixes / ~24,064 addresses, 0 IPv6 (corroborated by bgp.he.net and bgp.tools, 2026-06); prefixes in DoD legacy 214.x/215.x space — bgp.he.net/AS149, bgp.tools/as/149

Routing/peering

upstreams AS367 (DoD) and AS27065 (DoD) — both internal DoD ASNs; same two appear as the only observed peers; no commercial transit, no IXP, no PeeringDB record [Confirmed]; AS149's own peering policy is not published publicly [Unknown] — bgp.he.net/AS149, bgp.tools/as/149, peeringdb.com (404)

RPKI

no valid or invalid ROA originations recorded for AS149 (IPv4 or IPv6); prefixes are RPKI-unknown/uncovered [Confirmed]; RIPEstat rpki-validation was skipped (no prefix supplied) — bgp.he.net/AS149

Notable usage

carries US Department of Defense IP space as part of the broader DISN enterprise network (voice/data/video for US military); administered by the DISA NIC in Columbus, OH [Confirmed] — ipinfo.io/AS149, bgp.tools/as/149

Related ASNs

AS367 and AS27065 (DoD upstreams/peers); other DoD ASNs in the same DISA/DNIC family include AS564, AS721, AS749 [Confirmed for AS367/AS27065] — bgp.tools/as/149

Bogon note

bgp.he.net flags AS149 as announcing bogons; 214.x/215.x are DoD legacy allocations historically treated as reserved/non-globally-routable by many networks though routed internally by DoD [Confirmed] — bgp.he.net/AS149

Analyst note

Closed intra-DoD routing topology — all upstreams/peers are internal DoD ASNs and there is no public peering footprint. AS name DNIC-AS-00149 and contacts resolve to the DISA NIC. The nic.mil operator domain (per ip2location) was unreachable at check time. Clean legacy government ASN.