Pin code 306101
What 306101 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 101 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 101 identifies the delivery office.