Pin code 313801
What 313801 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 801 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 801 identifies the delivery office.