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

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-13f3f3f3f583f3f3f3f3f818b5b6b????X?????‹[k
SJIS-WIN3f3f3f3f583f3f3f3f3f818b5b6b????X?????°[k
EUC-JP3f3f3f3f583f3f3f3f3f818b5b6b????X???????[k
UTF-83f3f3f3f583f3f3f3f3f818b5b6b????X???????[k
UHC3f3f3f3f583f3f3f3f3f818b5b6b????X?????걢[k