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Domain footprint: mcmaster.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: 209.64.25.149 → AT&T Enterprises, LLC
Mail: mx0a-00570c01.pphosted.com → Proofpoint, Inc. · mx0b-00570c01.pphosted.com → Proofpoint, Inc.
SPF sends via: _spfprod.ngpvan.com

Separately, 11 organisations whose name resembles “mcmaster.com” — these may be unrelated to the domain above.

  1. McMaster University 8 netblocks · Canada Verified company
  2. Master Communication Pvt. Ltd. 6 netblocks · APNIC registry Routing
  3. MCMASTER CARR SUPPLY COMPANY 5 netblocks Routing
  4. Chedoke-McMaster Hospitals 2 netblocks · ARIN registry Routing
  5. WILLIAM-MCMASTER-TA-FAIR-DEAL-CABS 1 netblock · United Kingdom Routing
  6. Velma-MCMASTER-000000008700571 1 netblock · United Kingdom Routing
  7. CABLE MASTER COMUNICACIONES SAC 1 netblock · ARIN registry Routing
  8. MASTER-COMPLEX-LAN 1 netblock · Sweden Routing
  9. Globe-SURVEY_MASTER_COMM 1 netblock · Philippines Routing
  10. UNIMASTER-COMPONENTS 1 netblock · RIPE registry Routing
  11. PINGHU-NETMASTER-COMPUTER 1 netblock · APNIC registry Routing