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Domain footprint: columbia.edu

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.

Mail: mxa-00364e01.gslb.pphosted.com → Proofpoint, Inc. · mxb-00364e01.gslb.pphosted.com → Proofpoint, Inc.
SPF sends via: %{ir}.%{v}.%{d}.spf.has.pphosted.com

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

  1. HCA INC. 55 netblocks across 2 companies in this group Corporate group
  2. CALPINE LLC 10 netblocks across 2 companies in this group Corporate group
  3. His Majesty the King in Right of the Province of British Columbia 4 netblocks across 2 companies in this group Corporate group
  4. Government of the District of Columbia 15 netblocks · United States Verified company
  5. Columbia Bank 5 netblocks · United States Verified company
  6. COLUMBIA SPORTSWEAR COMPANY 5 netblocks · United States Verified company
  7. CALIFORNIA COLLEGE 3 netblocks · United States Verified company
  8. COLUMBIA COMMUNITY CREDIT UNION 2 netblocks · United States Verified company
  9. The Trustees of Columbia University in the City of New York 2 netblocks · United States Verified company
  10. Columbia Valley Community Health 1 netblock · United States Verified company
  11. Columbia Southern Education Group, Inc. 1 netblock · United States Verified company
  12. BANCO COLUMBIA SOCIEDAD ANONIMA 1 netblock · Argentina Verified company
  13. University of British Columbia 50 netblocks · ARIN registry Routing
  14. Columbia Power and Water Systems 47 netblocks · ARIN registry Routing
  15. Columbia Basin Broadband Corporation 38 netblocks · ARIN registry Routing
  16. Province of British Columbia 33 netblocks · ARIN registry Routing
  17. Columbia University 15 netblocks · ARIN registry Routing
  18. British Columbia Institute of Technology 11 netblocks · ARIN registry Routing
  19. University of Missouri-Columbia 9 netblocks · ARIN registry Routing
  20. Columbia Wireless Inc 8 netblocks · ARIN registry Routing