In early 2010, the Irish postal market will be opened to competition (until now, only the government’s « An Post » could deliver ordinary mail), and from that point forward the non- unique addressing system used in Ireland for hundreds of years will no longer be practical for delivering mail. To support the demand for more precise addressing from industries dependent on vehicle navigation, GPS Ireland, a GPS company in Ireland, has developed a post code system based on geographic coordinates. The system is referred to as PON Codes, short for Position Orientated Navigation Codes. PON Codes are seven character alphanumeric codes which have a mathematical relationship to latitude and longitude. more >>>