Pin code 306308
What 306308 tells you
The first digit, 3, is the postal zone. The first two digits, 30, are the postal circle. The first three, 306, are the sorting district, and 308 identifies the delivery office.
The first digit, 3, is the postal zone. The first two digits, 30, are the postal circle. The first three, 306, are the sorting district, and 308 identifies the delivery office.