Autonomous system
AS9656 T-SYSTEMS-SG T-SYSTEMS SINGAPORE PTE LTD
Unclassified APNIC
Summary
T-Systems Singapore
hosting enterprise legacy
AS9656 (T-SYSTEMS-SG) is held by T-Systems Singapore Pte Ltd, the Singapore arm of T-Systems International — Deutsche Telekom's enterprise IT-services subsidiary. T-Systems runs ICT infrastructure, data centres and cloud environments for corporate and public-sector customers, and the Singapore entity is its Asia-Pacific hub for that work.
What it's used for
This is the network of an outsourced-IT and managed-hosting provider, not a carrier. RIS sees 7 IPv4 prefixes totalling 12,288 addresses and no IPv6, learned through only 2 observed neighbours.
The whole inventory reduces to two APNIC blocks — 202.56.128.0/19 (with its component /20s and one /24 announced separately) and 202.136.0.0/20 (plus its /21s). Twelve thousand addresses is a substantial estate by enterprise standards but tiny by ISP standards, and two neighbours settles the question: a network with any wholesale ambitions would peer far more widely. What it looks like instead is a service provider whose customers reach it through their own connectivity, with the announced space carrying managed environments run on their behalf.
Card the network in front of you rather than the parent group: this is the Singapore operating company's own address space, and it should not be conflated with Deutsche Telekom's German backbone or with the many other T-Systems country entities, which are separate networks.
Notable
- A well-known global brand on a small, tightly aggregated inventory. The name implies scale that the routing does not.
- Both blocks come from
202/8, an early APNIC range, consistent with an ASN in the 9600s that has been held for a long time.
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 2026-10-26, 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 · 12.29K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| SG | Singapore | 2 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS9656- Registry name
- T-SYSTEMS-SG
- Registrant
- T-Systems Singapore Pte Ltd
- Abuse contact
- csnw@t-systems.com
- Registered
- 2008-09-04
- Last changed
- 2020-07-29
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 7 with no ROA
- ROAs
- 0 authorising AS9656
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 12 naming AS9656
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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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