Not a Character

U+FFFF
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Symbol Meaning

Not a Character. Specials.

The symbol “Not a Character” is included in the “Noncharacters” subblock of the “Specials” block and was approved as part of Unicode version 1.1 in 1993.

Unicode Name Not a Character
Unicode Number
HTML Code
CSS Code
Plane 0: Basic Multilingual Plane
Unicode Block Specials
Unicode Subblock Noncharacters
Unicode Version 1.1 (1993)
Type of paired mirror bracket (bidi) None
Composition Exclusion No
Case change FFFF
Simple case change FFFF
Noncharacter_Code_Point +
Encoding hex dec (bytes) dec binary
UTF-8 EF BF BF 239 191 191 15712191 11101111 10111111 10111111
UTF-16BE FF FF 255 255 65535 11111111 11111111
UTF-16LE FF FF 255 255 65535 11111111 11111111
UTF-32BE 00 00 FF FF 0 0 255 255 65535 00000000 00000000 11111111 11111111
UTF-32LE FF FF 00 00 255 255 0 0 4294901760 11111111 11111111 00000000 00000000
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