asn.dev

Autonomous system

AS1904 DNIC-AS-01904

Unclassified ARIN

IPv4 addresses 3.84K 6 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Flagged prefixes 0 none

Summary

US Department of Defense

United States · AI-generated

government military legacy

A US Department of Defense allocation (DNIC-AS-01904), registered through the DoD Network Information Center (DNIC), which holds many federal ASNs.

What it's used for

  • US government / military networking. The generic DNIC registration does not identify a specific base or unit.

Notable

  • A government / DoD network, not a commercial ISP or host.
  • A low AS number reflecting an early Department of Defense allocation.

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

Full explorer
CountryNamePrefixes
USUnited States of America6

Registry

Allocation record

via ARIN RDAP
Registry
ARIN
Handle
AS1904
Registry name
DNIC-AS-01904
Registrant
United States Department of Defense (DoD)
Abuse contact
disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
Registered
1992-07-07
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

Cross-check