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

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-13f817e3f3f3f3f61?~????a
SJIS-WIN3f817e3f3f3f3f61?×????a
EUC-JP3f817e3f3f3f3f61??~????a
UTF-83f817e3f3f3f3f61??~????a
UHC3f817e3f3f3f3f61??????a