Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS22228

Announcement observedARIN

Tokyo Electron U.S. Holdings, Inc. · TOKYO-ELECTRON-US-HOLDINGS-INC

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/22/2026, 16:21:45Snapshot expired

View network topology RDAP registration

ASN: AS22228
Registration country: United States
Name: Tokyo Electron U.S. Holdings, Inc.
Abbreviation: TOKYO-ELECTRON-US-HOLDINGS-INC
Registration date: 5/19/2011, 18:23:43
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
204.115.150.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
204.115.151.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: Tokyo Electron U.S. Holdings, Inc.
RIR: ARIN
Registration country: United States
Registration date: 5/19/2011, 18:23:43
Abuse contact: ryan.dunn@us.tel.com

Snapshot trend

10/22/2026, 16:21:452 v40 v62 Upstream · 0 Uncertain

10/21/2026, 01:00:582 v40 v62 Upstream · 0 Uncertain

10/1/2026, 09:23:552 v40 v62 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn