Autonomous system
AS668 DNIC-AS-00668
Business ARIN
Summary
US Department of Defense (DREN)
government research
AS668 (DNIC-AS-00668) is a US Department of Defense network, operated as the
Defense Research and Engineering Network (DREN) — the DoD's high-performance
backbone for its research, test, and engineering communities.
What it's used for
- Connecting DoD research and engineering sites to geographically distributed supercomputing resources over a secure, high-bandwidth, low-latency network.
Notable
- An IP here belongs to a US government / DoD operational network, not a commercial ISP or hosting provider. Most of the space is an internal "DoD-only" network; a smaller portion reaches the public internet through dedicated security gateways.
- Registered to the DoD Network Information Center (DNIC), which holds many US federal-government ASNs.
Interesting
- DREN links roughly 200 sites; its fourth generation (DREN 4) was completed in 2023.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 294 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS668- Registry name
- DNIC-AS-00668
- Registrant
- United States Department of Defense (DoD)
- Abuse contact
- disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
- Registered
- 1990-04-24
- Last changed
- 2025-09-12
- Status
- active
Reputation
Classification and threat
Business Corporate network, or multi-tenant SASE egress carrying staff browsing.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere