Autonomous system
AS22228 TOKYO-ELECTRON-US-HOLDINGS-INC
Unclassified ARIN
Summary
Tokyo Electron U.S. Holdings
business semiconductor corporate internal
The AS handle TOKYO-ELECTRON-US-HOLDINGS-INC is held by Tokyo Electron U.S. Holdings, Inc.
What it's used for
- The space carries corporate infrastructure for a semiconductor equipment manufacturer, evidenced by the netname
TEUH-IPV4-1and the registrant identity. - The inventory consists of 512 IPv4 addresses within a single /23 prefix (204.115.150.0/23) and 0 IPv6 prefixes, with 2 observed neighbours, indicating a small internal corporate estate rather than a transit or access network.
Notable
- The RDAP registrant
Tokyo Electron U.S. Holdings, Inc.matches the AS holder exactly, confirming direct ownership of the address space. - The address inventory is a single contiguous block, typical of a corporate network segmenting its internal operations.
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 2026-10-14, 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 · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS22228- Registry name
- TOKYO-ELECTRON-US-HOLDINGS-INC
- Registrant
- Tokyo Electron U.S. Holdings, Inc.
- Abuse contact
- ryan.dunn@us.tel.com
- Registered
- 2011-05-19
- Last changed
- 2018-11-13
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS22228
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS22228
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 1,772 prefixes, as published 2026-10-15. 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