Autonomous system
AS27138 DNIC-ASBLK-27032-27159
Unclassified APNIC
Summary
United States Department of Defense
government defense air-force internal
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 internal military networking, with netnames such as
AF-ACC-26NOS-128-26registered to Air Force Systems Networking andDNIC-NET-214registered to the DoD Network Information Center. - The AS announces 36096 IPv4 addresses across 98 prefixes while maintaining only 2 observed neighbours, a ratio that indicates a self-contained internal corporate estate rather than a transit or access provider.
Notable
- Registrants align with the announcer, specifically Air Force Systems Networking and the DoD Network Information Center.
- The inventory consists of 98 IPv4 prefixes with no IPv6 prefixes in inventory, reflecting a finely subdivided internal estate.
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 112 prefixes · 44.29K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 112 |
Registry
Allocation record
- Registry
- APNIC
- 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, 158 with no ROA
- ROAs
- 0 authorising AS27138
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 158 announcements 1 other origin
- Route objects
- 0 naming AS27138
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