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← Area code 503

503-400 phone numbers

Numbers 503-400-0000 to 503-400-9999 are assigned to Level 3 Communications, LLC in Salem, OR. 8 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 503-400

  1. 1 (503) 400-3388 9complaints
  2. 2 (503) 400-3960 4complaints
  3. 3 (503) 400-3866 3complaints
  4. 4 (503) 400-2169 1complaints
  5. 5 (503) 400-2650 1complaints
  6. 6 (503) 400-3014 1complaints
  7. 7 (503) 400-3045 1complaints
  8. 8 (503) 400-3068 1complaints
  9. 9 (503) 400-3076 1complaints
  10. 10 (503) 400-3132 1complaints
  11. 11 (503) 400-3159 1complaints
  12. 12 (503) 400-3173 1complaints
  13. 13 (503) 400-3189 1complaints
  14. 14 (503) 400-3207 1complaints
  15. 15 (503) 400-3291 1complaints
  16. 16 (503) 400-3295 1complaints
  17. 17 (503) 400-3352 1complaints
  18. 18 (503) 400-3385 1complaints
  19. 19 (503) 400-3414 1complaints
  20. 20 (503) 400-3465 1complaints
  21. 21 (503) 400-3523 1complaints
  22. 22 (503) 400-3534 1complaints
  23. 23 (503) 400-3615 1complaints
  24. 24 (503) 400-3616 1complaints
  25. 25 (503) 400-3650 1complaints
  26. 26 (503) 400-3664 1complaints
  27. 27 (503) 400-3921 1complaints
  28. 28 (503) 400-4151 1complaints
  29. 29 (503) 400-6234 1complaints
  30. 30 (503) 400-6484 1complaints
  31. 31 (503) 400-6685 1complaints
  32. 32 (503) 400-6798 1complaints
  33. 33 (503) 400-6894 1complaints
  34. 34 (503) 400-7273 1complaints
  35. 35 (503) 400-7490 1complaints
  36. 36 (503) 400-7564 1complaints
  37. 37 (503) 400-8563 1complaints