Autonomous system profile

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

AS21405

Announcement observedRIPE NCC

T-Systems Schweiz AG · TSS1

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

Last active10/1/2026, 07:25:15Snapshot expired

View network topology RDAP registration

ASN: AS21405
Registration country: Switzerland
Name: T-Systems Schweiz AG
Abbreviation: TSS1
Registration date: 11/29/2001, 20:23:01
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
138.124.232.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/1/2026, 00:00:00	✓	×	Historical record
185.153.104.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/1/2026, 00:00:00	✓	×	Historical record
193.108.232.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/1/2026, 00:00:00	✓	×	Historical record

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

Registration and sources

Organization: T-Systems Schweiz AG
RIR: RIPE NCC
Registration country: Switzerland
Registration date: 11/29/2001, 20:23:01
Abuse contact: FMB.TS-CHE-CSNET@t-systems.com

Snapshot trend

10/1/2026, 07:25:153 v41 v61 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