Pin code 505306
What 505306 tells you
The first digit, 5, is the postal zone. The first two digits, 50, are the postal circle. The first three, 505, are the sorting district, and 306 identifies the delivery office.
The first digit, 5, is the postal zone. The first two digits, 50, are the postal circle. The first three, 505, are the sorting district, and 306 identifies the delivery office.