Pin code 403704
What 403704 tells you
The first digit, 4, is the postal zone. The first two digits, 40, are the postal circle. The first three, 403, are the sorting district, and 704 identifies the delivery office.
The first digit, 4, is the postal zone. The first two digits, 40, are the postal circle. The first three, 403, are the sorting district, and 704 identifies the delivery office.