What is an IATA number used for?

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4. Are IATA airport codes unique?
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Tags

1. #includes
2. #number
3. #standard
4. #throughout
5. #agents
6. #airline
7. #services
8. #stands
9. #termed
10. #trade
11. #international
12. #practices
13. #issuance
14. #which
15. #establishes
16. #accredits
17. #world
18. #association
19. #certification
20. #transport
21. #travel
22. #operates
23. #companies