Autonomous system
AS25966 COHERENT
Unclassified ARIN
Summary
Coherent
business photonics corporate internal
The AS handle COHERENT is held by Coherent Inc., a global photonics and laser manufacturer.
What it's used for
- The address space carries internal corporate infrastructure, as indicated by the netname
COHERENTand registrantCoherent Inc.; Coherent Network Operations. - The inventory consists of 768 IPv4 addresses across 2 prefixes, with 3 observed neighbours. This low neighbour count relative to the address space suggests an internal corporate estate rather than a transit or access network.
Notable
- Registrants agree with the announcer, with both prefixes registered to
Coherent Inc.; Coherent Network Operations. - Coherent Inc. is the result of the 2022 merger between II-VI Incorporated and Coherent Corp, forming the current global leader in photonics.
- The address inventory is small and finely subdivided into two blocks, consistent with site-by-site segmentation for a large industrial corporation.
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 2026-10-20, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 768 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS25966- Registry name
- COHERENT
- Registrant
- Coherent Inc.
- Abuse contact
- khoa.tran@coherent.com
- Registered
- 2005-07-06
- Last changed
- 2021-05-20
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS25966
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 3 announcements 1 other origin
- Route objects
- 0 naming AS25966
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 1,779 prefixes, as published 2026-10-21. 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