Notes on CJK Character Codes and Encodings

The character codes covered are:

A code for traditional Chinese, widely used in Hong Kong, Taiwan and elsewhere.
94x94 Character Sets
These codes represent each character by a pair of numbers 1-94 (decimal), called row and column respectively ("kuten" in Japanese, "qu1wei4" in Chinese). The idea is to map onto the 94 graphic ASCII bytes, by adding 0x20 to each (0xA0 for shifted ASCII).
CCCII and ANSI Z39.64-1989 (EACC)
Two closely related 3-byte codes, intended to cover all CJK languages.
A new code covering most of the world's languages.

See Also

Comments on this document are most welcome.

Thanks to: Hu Bo, Nelson Chin, Ken'ichi Handa, Ken Lunde, Man-Chi Pong and Bob Sandstrom.

Last modified: 15th February 1995.

Ross Paterson <>