Postal Code > Belgium Favorite

Source: https://www.debuggex.com/r/3YYpuFA-ZpFKUp9N

Postal codes of the form: 'DDDD', with the first digit representing the province; the others distribution sectors. Postal codes do not start with a zero.

Sample Matches
Text Result
1234
Group #0
1234
match
9021
Group #0
9021
match
0123no match
123no match