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

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-13f3f3f3f3f3f3f3f3f3f3f3f3f818b818f61?????????????‹a
SJIS-WIN3f3f3f3f3f3f3f3f3f3f3f3f3f818b818f61?????????????°¥a
EUC-JP3f3f3f3f3f3f3f3f3f3f3f3f3f818b818f61????????????????
UTF-83f3f3f3f3f3f3f3f3f3f3f3f3f818b818f61?????????????????a
UHC3f3f3f3f3f3f3f3f3f3f3f3f3f818b818f61?????????????걢걦a