Autonomous system
AS5374 AS5374
Unclassified ARIN
Summary
US Department of Defense
government military legacy
AS5374 belongs to the United States Department of Defense. It sits inside the DNIC-ASBLK-05120-05376 block, a contiguous range of AS numbers held by the DoD Network Information Center and handed out to individual DoD networks.
What it's used for
- Routing for a US military network. The registry publishes only the block-level DoD registration, not the specific command, base, or program behind this particular AS number.
Notable
- A government network, not a commercial one. Address space here belongs to the DoD rather than to subscribers or hosting customers.
- ARIN records the enclosing DNIC block as registered in 1995, and the low AS number reflects the military's early and large presence on the internet.
Interesting
- The DoD holds AS numbers in whole reserved blocks rather than one at a time, which is why long runs of consecutive low ASNs all resolve to the same Department of Defense registrant.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 17 prefixes · 72.45K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| Unknown | 17 |
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
- 2026-09-25
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 13 with no ROA
- ROAs
- 0 authorising AS5374
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 13 announcements
- Route objects
- 0 naming AS5374
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,779 prefixes, as published 2026-10-21. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere