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Domain footprint: costco.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: 151.101.131.52 → Fastly, Inc. · 151.101.67.52 → Fastly, Inc. · 151.101.3.52 → Fastly, Inc. · 151.101.195.52 → Fastly, Inc.
Mail: mx0a-001f9d01.pphosted.com → Proofpoint, Inc. · mx0b-001f9d01.pphosted.com → Proofpoint, Inc.
SPF sends via: %{ir}.%{v}.%{d}.spf.has.pphosted.com

Separately, 14 organisations whose name resembles “costco.com” — these may be unrelated to the domain above.

  1. COSTCO WHOLESALE CORPORATION 48 netblocks across 3 companies in this group Corporate group
  2. FR-COSTCO-FRANCE--LB_INTERNET 10 netblocks · RIPE registry Routing
  3. FR-COSTCO-FRANCE 8 netblocks · RIPE registry Routing
  4. costco 7 netblocks · RIPE registry Registry
  5. COSTCOWHOLESALEAUSTRALIAPTYLTD 4 netblocks · Australia Routing
  6. FR-COSTCO-WHOLESALE--LB_INTERNET 3 netblocks · RIPE registry Routing
  7. COSTCONSULTING 3 netblocks · RIPE registry Routing
  8. TNSE-CUST-COSTCO 2 netblocks · Norway Routing
  9. Costco Travel 1 netblock Routing
  10. ZBSDRSEPSATCO-COM 1 netblock · APNIC registry Routing
  11. MODISH-DOTCOM-CO 1 netblock · China Routing
  12. COSTCONSULTINGFINLANDOY 1 netblock · Finland Routing
  13. SECOM COSTRUZIONI SRL 1 netblock · RIPE registry Registry
  14. COSTCONSULT-NET 1 netblock · Denmark Routing