Autonomous system
AS321 DNIC-ASBLK-00306-00371
Unclassified ARIN
IPv4 addresses
66.30K
25 prefixes
IPv6 prefixes
1
counted as prefixes, not addresses
Countries
1
mostly US
Flagged prefixes
0
none
Summary
US Department of Defense
government legacy military
An early US Department of Defense allocation from the block
DNIC-ASBLK-00306-00371, registered to the DoD Network Information Center (DNIC).
What it's used for
- US government / military network operations. The specific site or unit is not publicly identified in the block registration.
Notable
- A government / DoD network, not a commercial ISP or host. It sits in a contiguous block of low-numbered ASNs (00306–00371) held by the DoD Network Information Center from the internet's earliest years.
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 |
|---|---|---|
| US | United States of America | 26 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS306- Registry name
- DNIC-ASBLK-00306-00371
- Registrant
- United States Department of Defense (DoD)
- Abuse contact
- disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
- Registered
- 1989-06-30
- 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