Software to look up the phone area code of any city or town in China. You can type in PinYin or the English name of the city or town of your interest, and the software will let you know the exact area code for it. Reverse lookup feature is also available. All city and town names in Chinese are shown in pictures if you lookup the city name by area code. Handy free tool, updated annually.
Area Code Lookup Tool - Area Codes Directory
Area Code Lookup - Info On Every Area Code
Look up the zip code of any city in China.
Free World Area Codes
North American Area Code Database (Basic Edition) July - September 2007
North American area codes NPA/NXX database.