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

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-13feffb3f3f3f3f3f3f3f3f?ïû????????
SJIS-WIN3feffb3f3f3f3f3f3f3f3f??????????
EUC-JP3feffb3f3f3f3f3f3f3f3f?陋????????
UTF-83feffb3f3f3f3f3f3f3f3f???????????
UHC3feffb3f3f3f3f3f3f3f3f?鋌????????