Autonomous system
AS5939 AS5939
Unclassified ARIN
Summary
US Department of Defense — US Navy
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 two large prefixes
are registered to the Navy Network Information Center (NNIC).
What it's used for
- US Navy shore-side networking. Its main blocks carry the netnames
CNET-PCOLA(160.125.0.0/16) andCNET-SDIEGO(160.128.192.0/18), pointing at Navy education and training sites around Pensacola, Florida and San Diego, California. - Roughly 82,000 IPv4 addresses in total, dominated by that single legacy
/16.
Notable
- A government / DoD network, not a commercial ISP or host.
- The registration is one of the few in the DNIC block that names a service rather than just "Department of Defense" — the Navy ran its own NIC, and the netnames survive from that era.
- 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 | 4 |
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