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

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-13f3f3f3f3f3f3f818b817d603f3f3f3f3f3f3f3f3f78???????‹}`?????????x
SJIS-WIN3f3f3f3f3f3f3f818b817d603f3f3f3f3f3f3f3f3f78???????°±`?????????x
EUC-JP3f3f3f3f3f3f3f818b817d603f3f3f3f3f3f3f3f3f78??????????}`?????????x
UTF-83f3f3f3f3f3f3f818b817d603f3f3f3f3f3f3f3f3f78??????????}`?????????x
UHC3f3f3f3f3f3f3f818b817d603f3f3f3f3f3f3f3f3f78???????걢?`?????????x