asn.dev

Autonomous system

AS5831 DNIC-ASBLK-05800-06055

Unclassified ARIN

IPv4 addresses 131K 9 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

AS5831 is a US Department of Defense network, registered as part of the block

DNIC-ASBLK-05800-06055 held by the DoD Network Information Center (DNIC).

What it's used for

  • US government / military networking. The block registration is generic and does not name a specific base, command or unit.

Notable

  • An IP here belongs to a government / military network, not a commercial ISP or hosting provider.
  • It announces two full legacy /16s (140.47.0.0 and 140.48.0.0) plus a single /24, about 130,000 addresses in all, with almost no deaggregation.
  • Part of a large contiguous run of DoD-held ASNs (5800–6055), allocated to the DNIC as a block rather than one at a time.

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 America9

Registry

Allocation record

via ARIN RDAP
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

Cross-check