Pin code 311021
What 311021 tells you
The first digit, 3, is the postal zone. The first two digits, 31, are the postal circle. The first three, 311, are the sorting district, and 021 identifies the delivery office.
The first digit, 3, is the postal zone. The first two digits, 31, are the postal circle. The first three, 311, are the sorting district, and 021 identifies the delivery office.