Autonomous system
AS5974 AS5974
Unclassified ARIN
Summary
US Department of Defense — DISA Computing Services
government military legacy
A US Department of Defense network from the block DNIC-ASBLK-05800-06055,
registered to the DoD Network Information Center (DNIC). Its space is used by the
Defense Information Systems Agency (DISA) Computing Services Directorate —
reverse DNS across several of its ranges resolves under csd.disa.mil.
What it's used for
- Enterprise data-centre and application hosting for DoD components. DISA's Computing Services Directorate runs the Defense Enterprise Computing Centers (DECCs), which provide processing, storage and systems management for the services, agencies and combatant commands.
- Its largest block,
131.77.0.0/16, is registered under the netnameDECC-OGDEN— the DECC at Hill Air Force Base, Utah.
Notable
- A government / DoD network. Functionally this is hosting, but it is government-operated infrastructure serving DoD, not a commercial provider.
- The inventory mixes legacy
/16s (131.77,156.112) with214.xspace from the DoD-held/8s, plus a few IPv6/48s. - Part of a contiguous run of ASNs (5800–6055) held by the DoD Network Information Center.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| Unknown | 30 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS5800- Registry name
- DNIC-ASBLK-05800-06055
- Registrant
- United States Department of Defense (DoD)
- Abuse contact
- disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
- Registered
- 1995-10-24
- Last changed
- 2025-09-12
- Status
- active
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere