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← Area code 203

203-533 phone numbers

Numbers 203-533-0000 to 203-533-9999 are assigned to Level 3 Communications, LLC (rate centre GUILFORD, CT, NANPA abbreviation). 9 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 203-533

  1. 1 (203) 533-0368 12complaints
  2. 2 (203) 533-4247 11complaints
  3. 3 (203) 533-6378 9complaints
  4. 4 (203) 533-0815 8complaints
  5. 5 (203) 533-0858 6complaints
  6. 6 (203) 533-0863 6complaints
  7. 7 (203) 533-0859 4complaints
  8. 8 (203) 533-0860 4complaints
  9. 9 (203) 533-0878 4complaints
  10. 10 (203) 533-0784 3complaints
  11. 11 (203) 533-0837 3complaints
  12. 12 (203) 533-2002 3complaints
  13. 13 (203) 533-5902 3complaints
  14. 14 (203) 533-8347 3complaints
  15. 15 (203) 533-0191 2complaints
  16. 16 (203) 533-0333 2complaints
  17. 17 (203) 533-0527 2complaints
  18. 18 (203) 533-0573 2complaints
  19. 19 (203) 533-0605 2complaints
  20. 20 (203) 533-0715 2complaints
  21. 21 (203) 533-0720 2complaints
  22. 22 (203) 533-0726 2complaints
  23. 23 (203) 533-0854 2complaints
  24. 24 (203) 533-4348 2complaints
  25. 25 (203) 533-6518 2complaints
  26. 26 (203) 533-0012 1complaints
  27. 27 (203) 533-0035 1complaints
  28. 28 (203) 533-0058 1complaints
  29. 29 (203) 533-0063 1complaints
  30. 30 (203) 533-0073 1complaints
  31. 31 (203) 533-0090 1complaints
  32. 32 (203) 533-0092 1complaints
  33. 33 (203) 533-0094 1complaints
  34. 34 (203) 533-0113 1complaints
  35. 35 (203) 533-0116 1complaints
  36. 36 (203) 533-0120 1complaints
  37. 37 (203) 533-0124 1complaints
  38. 38 (203) 533-0204 1complaints
  39. 39 (203) 533-0224 1complaints
  40. 40 (203) 533-0259 1complaints
  41. 41 (203) 533-0273 1complaints
  42. 42 (203) 533-0291 1complaints
  43. 43 (203) 533-0301 1complaints
  44. 44 (203) 533-0430 1complaints
  45. 45 (203) 533-0431 1complaints
  46. 46 (203) 533-0448 1complaints
  47. 47 (203) 533-0453 1complaints
  48. 48 (203) 533-0526 1complaints
  49. 49 (203) 533-0531 1complaints
  50. 50 (203) 533-0533 1complaints

Showing the 50 most-reported.