Greece Postal Code:-
ELTA (, Hellenic Post) is responsible for the administration of the Greek postal code system. Each city street or rural location is assigned a unique five-digit number, the K'postal code' (). The first three digits indicate the municipality, prefecture, or city. The final two numbers designate streets or sections of streets in large cities.
The city of Athens has postal codes beginning with the numerals 100–180; the rest of the prefecture of Attica, with the exception of Corfu and Rhodes, has postal codes beginning with the digits 180–199.
A sophisticated method connects the second and third digits to the fourth and fifth digits.
In less populated areas, the third digit is always a zero, whereas the last two digits designate prefectural municipalities. Due to the smaller number of municipalities in these regions, the last two numbers typically do not surpass 50 or 60.
The third digit may increase to as high as 6 or 8, while the fourth and fifth digits may also increase.
The third digit is never a 0, but is always between 1 and 9. When it hits 8 or 9, the fourth and fifth digits likewise attain higher values, such as 80 and 99.
No sequences dating back to the 900s are used.
In Greece, all postal codes are numeric and consist of five digits. Until 1983, Athens and other cities had their own three-digit systems.