|Updated 22 December 2004||By Country Code||By Country Name||Other WTNG pages||Acknowledgements|
Area Code: 1-2 digits Subscriber Number: 6-8 digits Trunk Prefix: 0 International Prefix: 002
As an exception, special data subscriber numbers in Taichung beginning with 412 remain 7 digits (that is, the 412xxxx format subscriber numbers).
Nantou (+886 49): the digit '2' was prepended to most existing 6-digit subscriber numbers to form new 7-digit numbers, as of 1 January 2001.
As an exception, special data subscriber numbers in Taichung beginning with 41 are converted to 7 digits by adding the digit '2' after the 41 (that is, changing from 41xxxx format subscriber numbers to 412xxxx).
Taichung subscriber numbers (+886 4) may only begin with digits from 2 through 6. This avoids conflict with the Nantou area code +886 49, and other 2-digit area codes beginning with 4.
Reference: KDDI information page
One carrier is Chunghwa Telecom.
Cai's Phone Page has area code lists that include Taiwan, China and nearby places. This list includes places represented in Chinese characters.).
Also, see MOTC's telecom regulatory division, Directorate General of Telecommunications.