Autonomous system detail

AS649

Not announced

Operated by DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD).

Summary

// analyst note
AS649 has no individual RDAP object; it resolves to the covering block record DNIC-ASBLK-00616-00665 (AS616-AS665), registrant DoD, administered by DISA-Columbus. Allocated_date is the block's top-level ARIN RDAP registration event (1990-04-19), corroborated independently by bgp.tools. Entity-level contact-record dates (1993, 2007, 2009, 2025) were excluded as decoys, not allocation dates. Dormant, unannounced, no abuse signal.
// security note
NEUTRAL/DATED: no notable public abuse signal found as of 2026-07-17; not in Spamhaus reputation feeds, AbuseIPDB, or NANOG archives.
IPv4 prefixes
0
~0 addresses
IPv6 prefixes
0
—
Peer networks
0
0 up · 0 down
IANA block
1-1876
Assigned by ARIN
[ 01 ] — Context

About this ASN.

Updated  ·  Confidence: Medium

AS649 is a legacy autonomous system number that falls inside a block-style ARIN registration, DNIC-ASBLK-00616-00665, spanning AS616 through AS665 and registered as a unit to the United States Department of Defense (DoD). Rather than an individually-issued ASN record, querying AS649 in ARIN RDAP resolves to this covering block, whose registrant organization handle is USDDD and whose administrative and abuse contacts route through the Defense Information Systems Agency (DISA) in Columbus, Ohio — a DNIC (Defense Network Information Center) legacy pattern common to DoD address space. The top-level autnum registration event on that block record is dated 1990-04-19, with a most-recent "last changed" maintenance event on 2025-09-12; neither should be confused with the deeper, entity-level contact-record dates (1993, 2007, 2009, 2025) nested further down in the RDAP response, which describe when individual point-of-contact objects were created or edited, not when the ASN itself was allocated. Every routing-visibility source checked — RIPEstat, CAIDA ASRank, Hurricane Electric, and bgp.tools — agrees AS649 originates zero IPv4 and zero IPv6 prefixes and has no observed BGP neighbors, consistent with internal or reserved DoD use rather than public Internet transit. No PeeringDB network record, public peering policy, or notable abuse/security signal was found for this ASN.

Allocated date
1990-04-19 — top-level ARIN RDAP autnum "registration" event for the covering block record; independently corroborated by bgp.tools, which states the block has been DoD-registered since April 1990 [Confirmed] — https://rdap.arin.net/registry/autnum/649, https://bgp.tools/as/649
Operator official website
no dedicated public page for AS649 itself; DISA (the administering agency) has a general site at disa.mil but no AS649-specific page was found [Likely] — https://rdap.arin.net/registry/autnum/649
Org status
active per ARIN RDAP (status: "active") [Confirmed] — https://rdap.arin.net/registry/autnum/649
IANA reference
none found; left blank rather than invented [Unknown]

Abuse contact

disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil

[Confirmed] — RIPEstat abuse-contact-finder (resource 649)

Security/abuse context (NEUTRAL, DATED)

no AS649-specific listing found on Spamhaus reputation resources, AbuseIPDB, aggregated abuse feeds, or NANOG mailing-list archives as of 2026-07-17; not tied to the unrelated 2021 Global Resource Systems activation of dormant DoD IPv4 blocks

[Likely] — https://www.spamhaus.org/reputation-statistics/, https://seclists.org/nanog/

Network & routing

Network type
U.S. federal government/military network space (DNIC legacy block), not a commercial ISP or hosting provider [Likely] — https://rdap.arin.net/registry/autnum/649
Routing status
not announced — 0 IPv4 and 0 IPv6 prefixes, 0 observed BGP peers/upstreams (0/326 RIS peers seeing it for v4, 0/321 for v6) [Confirmed] — RIPEstat routing-status (resource 649), https://bgp.he.net/AS649, https://bgp.tools/as/649
CAIDA AS rank / customer cone
rank 79459; customer cone = 1 ASN (itself only), 0 prefixes, 0 addresses; not a clique member [Confirmed] — CAIDA ASRank API (asn 649)
Peering policy
none publicly published; no PeeringDB network record found for AS649, and it does not appear among the DoD-org ASNs listed under PeeringDB org id 17705 [Confirmed] — https://www.peeringdb.com/org/17705
RPKI posture
not applicable/Unknown — AS649 originates zero prefixes, so there is no route to validate against a ROA [Unknown] — RIPEstat rpki-validation (skipped, no prefix supplied)
Geo footprint
administrative footprint Columbus, OH, US (DISA-Columbus) per RDAP; CAIDA reports country=US but returns an unset 0,0 lat/long placeholder, so precise geo-coordinates are Unknown [Likely] — https://rdap.arin.net/registry/autnum/649
Notable usage
none publicly documented; no source ties AS649 to a specific named DoD system or public-facing service, consistent with its dormant/unrouted status [Likely] — https://bgp.he.net/AS649, https://bgp.tools/as/649
ASN
AS649 [Confirmed] — https://rdap.arin.net/registry/autnum/649
Registrant / operator
United States Department of Defense (DoD), org handle USDDD, part of block DNIC-ASBLK-00616-00665 (AS616-AS665) [Confirmed] — https://rdap.arin.net/registry/autnum/649
Registry / RIR
ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/649
Last changed
2025-09-12 (top-level autnum "last changed" maintenance event; not a new allocation) [Confirmed] — https://rdap.arin.net/registry/autnum/649
[ 02 ] — Announced prefixes

What this network routes.

0 prefixes total · RIPEstat data · cached, not real-time
// IPv4 prefixes0
No IPv4 prefixes announced.
// IPv6 prefixes0
No IPv6 prefixes announced.
[ 03 ] — Notable peers & upstreams

Who it talks to.

0 observed neighbours
Neighbour data unavailable from public BGP collectors.