Autonomous system
AS367 DNIC-ASBLK-00306-00371
Unclassified ARIN
Summary
US Department of Defense
government military legacy
An early US Department of Defense network, allocated from the DNIC-ASBLK-00306-00371 block registered to the DoD Network Information Center (DNIC).
What it's used for
- US military / Department of Defense networking.
Notable
- A US government / DoD network, not a commercial ISP or host. Registered to the DoD Network Information Center (DNIC), which holds many federal ASNs.
- The low AS number reflects an allocation from the internet's earliest years, handed out roughly sequentially.
- Announces a large amount of legacy DoD IPv4 address space, reflecting the department's early and expansive allocations.
Interesting
- Part of a contiguous block of AS numbers (306–371) reserved for the DoD, a common pattern for early government allocations.
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 324 prefixes · 1.03M addresses IPv6 10 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 334 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS306- Registry name
- DNIC-ASBLK-00306-00371
- Registrant
- United States Department of Defense (DoD)
- Abuse contact
- disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
- Registered
- 1989-06-30
- Last changed
- 2025-09-12
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1,062 with no ROA
- ROAs
- 0 authorising AS367
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 1,062 announcements
- Route objects
- 0 naming AS367
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