asn.dev

Autonomous system

AS27079 DNIC-ASBLK-27032-27159

Unclassified ARIN

IPv4 addresses 8.96K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

United States Department of Defense

United States of America · AI-generated

government military dod infrastructure

DNIC-ASBLK-27032-27159 is operated by the United States Department of Defense.

What it's used for

  • The address space carries DoD internal infrastructure, evidenced by reverse DNS entries such as dhcp-72-0.rev.sd.mil and host-65-64.rev.sd.mil.
  • The AS announces 8960 IPv4 addresses across 3 prefixes, with a single observed neighbour, indicating a self-contained internal network rather than a transit or access provider.

Notable

  • Registrants align with the announcer, including DoD Network Information Center for the 214.16.64.0/19 and 214.3.184.0/23 blocks, and Headquarters, USAISC for the 130.16.65.0/24 block.
  • The inventory consists of three distinct IPv4 prefixes with no announced IPv6 prefixes, reflecting a segmented 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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS745Air Force Systems Networking240

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 3 prefixes · 8.96K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
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

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS27079
ASPA
no ASPA record
IRR
0% registered · 0 of 4 announcements
Route objects
0 naming AS27079

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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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

Cross-check