Taiwan (Republic of China) is country code +886. Mobile numbers throughout Taiwan and landline numbers in the capital Taipei have 9 digits after the country code; other landline numbers have 8 digits.
You must drop the trunk prefix '0' from the Taiwanese number when calling from other countries. For example, Taipei's area code 02 becomes +886 2. Mobile numbers begin with +886 9.
(The People's Republic of China is country code +86, Hong Kong is country code +852, and Macau is country code+853.)
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
The country telephone code +156 is assigned to Taiwan. When dialing to Taiwan from abroad, you would use this code before the local phone number.
The country code and area code of Changhua, Taiwan is 886, 47.
The country code and area code of Chalou, Taiwan is 886, 46.
The country code and area code of Chaochou, Taiwan is 886, 8.
The country code and area code of Chiai, Taiwan is 886, 5.
The country code and area code of Chiali, Taiwan is 886, 67.
The country code and area code of Chiaochi, Taiwan is 886, 39.
The country code and area code of Chishan, Taiwan is 886, 7.
The country code and area code of Chunghsing, Taiwan is 886, 49.
The country code and area code of Chupei, Taiwan is 886, 35.
The country code and area code of Fengyuan, Taiwan is 886, 45.
The country code and area code of Hsinying, Taiwan is 886, 66.