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Domain footprint: caltech.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: 15.197.225.128 → Amazon Web Services, Inc. · 3.33.251.168 → Amazon Web Services, Inc.
Mail: caltech-com.mail.protection.outlook.com → Microsoft Corporation
SPF sends via: %{i}._ip.%{h}._ehlo.%{d}._spf.vali.email

Separately, 20 organisations whose name resembles “caltech.com” — these may be unrelated to the domain above.

  1. Valtech 23 netblocks · Belgium Verified company
  2. CALTECH SA 5 netblocks · PY Verified company
  3. hostandtech.com RIPE 43 netblocks · RIPE registry Routing
  4. ZAMTECH COM TELECOMUNICACOES LTDA 12 netblocks · LACNIC registry Routing
  5. CMTECH Com.e Serv.de Informatica Ltda 5 netblocks · ARIN registry Routing
  6. FR-TECH-COM--LB_INTERNET 2 netblocks · RIPE registry Routing
  7. FR-TECH-COM 2 netblocks · RIPE registry Routing
  8. KANGMUTE-TECH-COM 2 netblocks · APNIC registry Routing
  9. JUHUI-TECH-COM 2 netblocks · APNIC registry Routing
  10. FANGWEI-TECH-COM 2 netblocks · APNIC registry Routing
  11. HEQIN-TECH-COM 2 netblocks · APNIC registry Routing
  12. Afranet 2 netblocks · RIPE registry Registry
  13. SN-HD-TECH-COM 2 netblocks · APNIC registry Routing
  14. WINTECH-COM 2 netblocks · APNIC registry Routing
  15. XA-LT-TECH-COM 2 netblocks · APNIC registry Routing
  16. XA-SEASTAR-SCI-TECH-COM 2 netblocks · APNIC registry Routing
  17. Temasek Tech.com 2 netblocks Registry
  18. RSPC UK Caltech IT Ltd 1 netblock · RIPE registry Registry
  19. nnsltech-com 1 netblock · APNIC registry Routing
  20. QDTLTECH-COM 1 netblock · APNIC registry Routing