Autonomous system
AS5957 AS5957
Unclassified ARIN
Summary
US Department of Defense — Navy DSRC
government military research legacy
A US Department of Defense network from the block DNIC-ASBLK-05800-06055, registered to the DoD Network Information Center (DNIC). Its address space serves the Navy DoD Supercomputing Resource Center (Navy DSRC) — reverse DNS across its ranges resolves under navydsrc.hpc.mil.
What it's used for
- Networking for one of the DoD Supercomputing Resource Centers under the High Performance Computing Modernization Program (HPCMP). The Navy DSRC sits within the Naval Meteorology and Oceanography Command at Stennis Space Center, Mississippi, and provides supercomputing to DoD scientists and engineers.
- It announces four contiguous
/24s of DNIC space plus an IPv6/48from2001:480::/32, the block registered as DREN-V6.
Notable
- A government / DoD research network, not a commercial ISP or host.
- The IPv6 announcement is the tell: DREN is the Defense Research and Engineering Network, the HPCMP's nationwide low-latency R&D backbone connecting the supercomputing centres to their user communities.
Interesting
- DREN has a long-standing reputation as an early and aggressive IPv6 adopter within the US government, which fits an AS whose IPv6 footprint is proportionally far larger than its modest IPv4 one.
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.
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS668 | United States Department of Defense (DoD) | 309 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 1.02K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| Unknown | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS5800- Registry name
- DNIC-ASBLK-05800-06055
- Registrant
- United States Department of Defense (DoD)
- Abuse contact
- disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
- Registered
- 1995-10-24
- Last changed
- 2025-09-12
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS5957
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 5 naming AS5957
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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