Identity documents in Iran

[3] Its main use is to send letters or postal packages sent by the Iran Post Company.

[4][5] Postal code in Iran is issued by the General Geographical and Spatial Administration of the country under the supervision of the National Post Company.

[4][5] The plan to allocate and use the 10-digit postal code was included in the agenda of the Government and the Islamic Consultative Assembly of Iran in 1991.

Therefore, during a 5-year period, from 1991 to 1996, they began to collect statistics and informations, and in 1997, they announced 10-digit postal codes for all Iranian places and households.

[6] In 1997, the law requiring the allocation of national numbers and postal codes to all Iranian citizens was approved:[7][8][9]