Pin code 680688
What 680688 tells you
The first digit, 6, is the postal zone. The first two digits, 68, are the postal circle. The first three, 680, are the sorting district, and 688 identifies the delivery office.
The first digit, 6, is the postal zone. The first two digits, 68, are the postal circle. The first three, 680, are the sorting district, and 688 identifies the delivery office.