Autonomous system
AS3431 ESNET-AS
Unclassified ARIN
Summary
ESnet (Energy Sciences Network)
government research legacy
An Energy Sciences Network (ESNET-AS) autonomous system. ESnet is the US Department of Energy's science network, linking DOE national laboratories and research facilities to each other and to the wider internet.
What it's used for
- Research and laboratory networking for the DOE complex, with a small announced footprint on this particular AS number.
- No commercial customer base. ESnet exists to serve the department's science mission.
Notable
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 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS293 | ESnet | 272 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3425- Registry name
- ESNET-AS
- Registrant
- ESnet
- Abuse contact
- hostmaster@es.net
- Registered
- 1994-02-17
- Last changed
- 2012-04-10
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS3431
- ASPA
- 1 declared providers
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 5 naming AS3431
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 1,784 prefixes, as published 2026-10-19. 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