Software to search and query the zip code of any city or town in China. You can type in PinYin or the English name of the city or town of your choice, and the software will let you know the exact zip code for it.

Reverse lookup feature is also available. You just enter a zip code, and the software will immediately let you know the name of the city or town corresponding to the zip code, and it allows you to search online a zip code for details.