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

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-13f818f3f3f3f3f616b?????ak
SJIS-WIN3f818f3f3f3f3f616b?￥????ak
EUC-JP3f818f3f3f3f3f616b?????ak
UTF-83f818f3f3f3f3f616b???????ak
UHC3f818f3f3f3f3f616b?걦????ak