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Domain footprint: t-systems.com

Resolved live just now — where this domain's services actually run, with each address attributed by OrgIndex. A DNS observation, not registry data: many organisations run entirely on providers' networks and hold no IP space of their own.

Web: 63.181.161.172 → Amazon Web Services, Inc. · 3.125.164.65 → Amazon Web Services, Inc. · 63.183.123.42 → Amazon Web Services, Inc.
Mail: mailin.ng.telekom.net → Amazon Web Services, Inc.
SPF sends via: _spfa.telekom.com · _spf.t-systems.at

Separately, 15 organisations whose name resembles “t-systems.com” — these may be unrelated to the domain above.

  1. ORACLE CORPORATION 5,906 netblocks across 7 companies in this group Corporate group
  2. DEUTSCHE TELEKOM AG 5,368 netblocks across 24 companies in this group Corporate group
  3. 騰訊控股有限公司 3,745 netblocks across 5 companies in this group Corporate group
  4. DATACOM SYSTEMS LTD 87 netblocks across 2 companies in this group Corporate group
  5. NORTHROP GRUMMAN CORPORATION 101 netblocks · United States Verified company
  6. CompuCom Systems, Inc. 28 netblocks · United States Verified company
  7. ENVIRONMENTAL SYSTEMS RESEARCH INSTITUTE, INC. 26 netblocks · United States Verified company
  8. UNICOM SYSTEMS INC. 10 netblocks · United States Verified company
  9. MTS Systems Corporation 9 netblocks · United States Verified company
  10. Epic Systems Corporation 6 netblocks · United States Verified company
  11. ALLIED SYSTEMS COMPANY 1 netblock · United States Verified company
  12. SEOCHO CABLE SYSTEMS CO., LTD. 307 netblocks Routing
  13. Internet Systems Consortium, Inc. 226 netblocks · ARIN registry Routing
  14. TOYOTA SYSTEMS CORPORATION 218 netblocks · APNIC registry Routing
  15. Systems Cognix 192 netblocks · RIPE registry Routing