Postcodes in Poland2 digit postcode poland.pngIn Poland the system of postal codes (numbers Mailing Address - PNA) was introduced January 1, 1973 pursuant to Regulation No 89 of the Minister of Communications of 17 November 1972 [citation needed].Postal codes are in the format dd-ddd (d is a digit) and are placed to the left of the name of the village. The first digit specifies the postal district, and the PNA is assigned either to the post office, or, in the so-called. cities dedicated to individual streets and houses.List of cities separated as follows: Bialystok, Bielsko-Biala Wrocław, Czestochowa, Łódź, Gdynia, Warszawa, Kielce Koszalin Krakow, Zduńska Wola, Lodz, Łódź, Opole, Poznan Radom Rzeszow, Śląsk, Katowice, Warsaw, Wroclaw, Zielona Gora.The importance of the following numbersFirst - District Code - defines the Postal District  at the time of the introduction of the then PNA were one or two provinces.Code division signs districts of Warsaw was established in accordance with the clockwise direction, and so:0 - Warsaw district1 - Warszawa district2 - Sieradz district3 - district of Krakow4 - Poznań districtpięć - Wroclaw district6 - Olsztyn district7 - Poznań district8 - district of Gdansk9 - Lodz districtThe second - zone code - indicates which part of the circle is specified area along the lines of communication, or the capital city.Third-sector code - includes distribution sector subject area (former districts), and in nineteen major cities of the contract cities. It was founded in the time of the creation of the system. Now that the liquidation of sector offices have the concept of “sector” is an summary concept, and the third digit of the code remains attributes, defining an area stamp.

Pattern postcodes:

07-436,
07-437,
07-438,
07-440,
08-101,
08-103,
08-104,
08-106,
08-107,
08-108,
08-109,
08-110,
08-111,
08-112,
08-113,
08-114,