Autonomous system
AS5307 AS5307
Unclassified ARIN
IPv4 addresses
108K
58 prefixes
IPv6 prefixes
1
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 government / military networking, at some scale: it originates dozens of prefixes, drawn largely from the DoD's
214.0.0.0/8plus blocks named for the Defense Information Systems Agency (DISA) computing services directorate.
Notable
- A government / military network, not a commercial ISP or host.
- The DISA-named blocks suggest shared, agency-run computing infrastructure serving other DoD components, rather than a single base network.
- The DNIC registration itself names no specific base or unit; the DISA attribution comes from the names on the address blocks it announces.
Interesting
- DISA is effectively the Department of Defense's internal IT and telecommunications provider, running the networks and data centres that other military organisations consume as a service.
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 | 59 |
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