Autonomous system
AS5264 AS5264
Unclassified ARIN
IPv4 addresses
65.54K
1 prefixes
IPv6 prefixes
0
counted as prefixes, not addresses
Countries
1
mostly Unknown
Flagged prefixes
0
none
Summary
US Department of Defense
government military legacy
A US Department of Defense network from the block DNIC-ASBLK-05120-05376,
registered to the DoD Network Information Center (DNIC).
What it's used for
- US Navy networking. The ASN originates exactly one prefix, the legacy
152.80.0.0/16, which is registered to the Navy Network Information Center (NNIC) under the network nameFNOCNET.
Notable
- A government / military network, not a commercial ISP or host.
- One ASN, one
/16, nothing else — a tidy single-purpose military network. - The DNIC registration names no unit; the
FNOCNETlabel on the address block is the only hint at its user, and points toward the Navy's Fleet Numerical (meteorology and oceanography) operations.
Interesting
- Navy Fleet Numerical is one of the military's long-running supercomputing sites, producing global weather and ocean forecasts for the fleet, so this is likely a scientific-computing network rather than an administrative one.
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 | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS5120- Registry name
- DNIC-ASBLK-05120-05376
- Registrant
- United States Department of Defense (DoD)
- Abuse contact
- disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
- Registered
- 1995-05-09
- 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