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20 organisations match “bt.com”, closest first.

  1. Servers.com, Inc. 2,296 netblocks · ARIN registry Routing
  2. BT-CORPORATE 828 netblocks · United Kingdom Routing
  3. BT 723 netblocks · United Kingdom Routing
  4. Snel.com B.V. 29 netblocks · RIPE registry Routing
  5. noorhost.com.bd 25 netblocks · APNIC registry Registry
  6. BT-CONSUMER 21 netblocks · United Kingdom Routing
  7. barebox.com.bd 19 netblocks · APNIC registry Registry
  8. Global Com Basilicata s.r.l. 17 netblocks · PEERINGDB registry Routing
  9. BT-CORE 9 netblocks · United Kingdom Routing
  10. www.voicesystemsolution.com.br 6 netblocks · RIPE registry Registry
  11. BT Conferencing 6 netblocks · RIPE registry Routing
  12. BT-COMPUTE 5 netblocks · United Kingdom Routing
  13. BT-Copernicus 5 netblocks · United Kingdom Routing
  14. PowerDNS.COM BV 4 netblocks · RIPE registry Routing
  15. CEGECOM-BT 4 netblocks · Luxembourg Routing
  16. www.disruptec.com.br 4 netblocks · RIPE registry Registry
  17. NET-NL-BOOKING-COM 3 netblocks · RIPE registry Routing
  18. MEIZHOU-BT-COM-NETBAR 2 netblocks · APNIC registry Routing Unverified name
  19. CC-BT-COM 2 netblocks · APNIC registry Routing
  20. BT-Comsec-Networking 2 netblocks · United Kingdom Routing

Domain footprint: bt.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: 45.60.72.23 → Incapsula Inc · 45.60.65.23 → Incapsula Inc
Mail: btgroupcloud-mail-onmicrosoft-com.mail.protection.outlook.com → Microsoft Corporation
SPF sends via: spf.protection.outlook.com · www.thrs.bt.com · smtp1.bt.com