Office 365 endpoints ยท worldwide

Unique IPv4 prefixes

Every IPv4 address in CIDR form from the Microsoft endpoint list, with duplicates removed and IPv6 left out. PHP loads the feed, so the browser never calls Microsoft directly.

34 unique
17 duplicates skipped
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  1. 1 13.107.6.152/31
  2. 2 13.107.6.171/32
  3. 3 13.107.6.192/32
  4. 4 13.107.9.192/32
  5. 5 13.107.18.10/31
  6. 6 13.107.18.15/32
  7. 7 13.107.128.0/22
  8. 8 13.107.136.0/22
  9. 9 13.107.140.6/32
  10. 10 20.20.32.0/19
  11. 11 20.190.128.0/18
  12. 12 20.231.128.0/19
  13. 13 23.103.160.0/20
  14. 14 40.92.0.0/15
  15. 15 40.96.0.0/13
  16. 16 40.104.0.0/15
  17. 17 40.107.0.0/16
  18. 18 40.108.128.0/17
  19. 19 40.126.0.0/18
  20. 20 52.96.0.0/14
  21. 21 52.100.0.0/14
  22. 22 52.104.0.0/14
  23. 23 52.108.0.0/14
  24. 24 52.112.0.0/14
  25. 25 52.122.0.0/15
  26. 26 52.238.78.88/32
  27. 27 52.244.37.168/32
  28. 28 104.47.0.0/17
  29. 29 104.146.128.0/17
  30. 30 131.253.33.215/32
  31. 31 132.245.0.0/16
  32. 32 150.171.32.0/22
  33. 33 150.171.40.0/22
  34. 34 204.79.197.215/32