Pin code 313031
What 313031 tells you
The first digit, 3, is the postal zone. The first two digits, 31, are the postal circle. The first three, 313, are the sorting district, and 031 identifies the delivery office.
The first digit, 3, is the postal zone. The first two digits, 31, are the postal circle. The first three, 313, are the sorting district, and 031 identifies the delivery office.