format (U+hhhhhh). Plane 0 is the BasicMultilingualPlane (BMP), which contains most commonly used characters. The higher planes 1 through 16 are called
available for use/allocation, but only the first 65,536, which is the BasicMultilingualPlane (BMP), had entered into common use before 2000. This situation
traditional Chinese). The basicISO-2022-CN profile uses ASCII as its G0 (shift in) set, and also includes GB 2312 and the first two planes of CNS 11643 (due
hexadecimal digits, for example U+00AE or U+1D310. Characters in the BasicMultilingualPlane (BMP), containing modern scripts – including many Chinese and Japanese