Autonomous system
AS4010 DNIC-AS-04010
Unclassified ARIN
Summary
U.S. Army (DNIC-AS-04010)
government military legacy
DNIC-AS-04010 is one of the United States military's DNIC-prefixed autonomous systems. The ARIN registrant is recorded as "Headquarters, USAISC", the U.S. Army Information Systems Command.
What it's used for
- Military network operations. The DNIC (Defense Network Information Center) naming convention marks the whole family of U.S. Department of Defense autonomous systems, of which this is one.
- Public registry data does not describe the specific mission, sites, or systems behind it, and nothing further should be read into the number itself.
Notable
- The address footprint is very large by any measure: over a million IPv4 addresses sit behind this single ASN, a scale seen almost only in DoD and legacy carrier networks.
- The registrant name is a historical artifact. USAISC was established in 1984 at Fort Huachuca, Arizona, redesignated U.S. Army Signal Command in 1996, and its centralised network role passed to the U.S. Army Network Enterprise Technology Command (NETCOM) in 2002. The registry entry kept the old name.
Interesting
- DoD holds an unusually deep pool of legacy IPv4, and low, contiguous ASNs like this one are part of the same early-allocation inheritance.
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 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 42 prefixes · 1.18M addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 42 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS4010- Registry name
- DNIC-AS-04010
- Registrant
- Headquarters, USAISC
- Abuse contact
- disa.columbus.ns.mbx.arin-registrations@mail.mil
- Registered
- 1994-11-10
- Last changed
- 2011-08-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 39 with no ROA
- ROAs
- 0 authorising AS4010
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 39 announcements
- Route objects
- 0 naming AS4010
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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