What character(s) does a bitstring is encoded in each character set?

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-1e688bb5b4246戻[BF
SJIS-WINe688bb5b4246謌ｻ[BF
EUC-JPe688bb5b4246??BF
UTF-8e688bb5b4246戻[BF
UHCe688bb5b4246臆?BF