Autonomous system
AS27064 DNIC-ASBLK-27032-27159
Unclassified ARIN
Summary
United States Department of Defense
government defense military infrastructure
The AS handle DNIC-ASBLK-27032-27159 is held by the United States Department of Defense (DoD).
What it's used for
- The address space carries military and government network infrastructure, evidenced by netnames such as
FMLTCU,YUMA-SE,NET-DISA-COLS,JCTEU,MEPCOM-NET1,NOR-NAVSHPYD, andCHS-NIPRNET. - With 1,486,336 IPv4 addresses announced across 856 prefixes and 78 observed neighbours, the ratio indicates a large-scale internal corporate estate rather than a transit provider, consistent with site-by-site segmentation for a massive organization.
Notable
- Registrants include the DoD Network Information Center, Headquarters USAISC, and the Navy Network Information Center (NNIC), all aligning with the DoD announcer.
- The address inventory is finely subdivided into numerous /16, /17, and /18 blocks, reflecting the distributed nature of DoD facilities and commands.
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.
Transit providers
1 upstream, 76 downstream and 95 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS721 | United States Department of Defense (DoD) | 57,004 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 875 prefixes · 1.60M addresses IPv6 33 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 908 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS27032- Registry name
- DNIC-ASBLK-27032-27159
- Registrant
- United States Department of Defense (DoD)
- Abuse contact
- disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
- Registered
- 2003-01-16
- Last changed
- 2025-09-12
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 972 with no ROA
- ROAs
- 0 authorising AS27064
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 972 announcements
- Route objects
- 1 naming AS27064
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 1,783 prefixes, as published 2026-10-20. 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