Are tracking numbers unique?

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  1. #organizations
  2. #numbers
  3. #deliveries
  4. #united
  5. #knowing
  6. #companies
  7. #tracking
  8. #states
  9. #shipped
  10. #postal
  11. #useful
  12. #location
  13. #number
  14. #packages
  15. #sensitive
  16. #given
  17. #service
  18. #fedex