National Identification Number - Taiwan

Taiwan

In Taiwan, an ID card is mandatory for all citizens who are over 14 years old. The ID card has been uniformly numbered since 1965. The current ID number has 10 digits in the format AG#######C. The first digit is one capital English letter and is followed by nine Arabic numerals. The letter records the card holder's first location of household registration, which is usually where s/he was born. The letter indicates one of the following areas:

Every citizen has a unique ID number. A valid National Identification number consists of one letter and nine-digits. The initial letter depends on the place of one's first household registration. The first digit depends on gender; 1 for male, 2 for female. The last digit is a checksum. Thus the total number of IDs is 208,000,000.

The letter usage is as follows:

Active Letters Letters no longer issued
Letter City/County
A Taipei City
B Taichung City
C Keelung City
D Tainan City
E Kaohsiung City
F New Taipei City
G Yilan County
H Taoyuan County
I Chiayi City
J Hsinchu County
K Miaoli County
Letter City/County
M Nantou County
N Changhua County
O Hsinchu City
P Yunlin County
Q Chiayi County
T Pingtung County
U Hualien County
V Taitung County
W Kinmen County
X Penghu County
Z Lienchiang County
Letter Original division Date of final issue Current division
L Taichung County Dec. 25, 2010 Taichung City
R Tainan County Dec. 25, 2010 Tainan City
S Kaohsiung County Dec. 25, 2010 Kaohsiung City
Y Yangmingshan Management Bureau 1975 Taipei City

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