How do I change my zip code to postal code?

Related questions

1. Can postcodes change?
2. What do the letters in a postcode mean?
3. Can a postcode cover more than one street?
4. What is a postcode district?
5. Can two houses have the same postal code?
6. What is the biggest postcode area?
7. Are all ZIP codes 5 digits?
8. Why do postcodes change?
9. Are postal codes house specific?
10. What does my postcode mean?

Tags

1. #digits
2. #example
3. #23400
4. #zeros
5. #questions
6. #enter
7. #postal
8. #three
9. #contact
10. #issuer
11. #should
12. #prompted
13. #digit
14. #number