Se você está no Linux, você pode tentar o script Perl utfinfo.pl (consulte também Programa para verificar / procurar caracteres UTF-8 / Unicode em string na linha de comando? ); a saída que recebo é:
$ echo ก็็็็็็็็็็ กิิิิิิิิิิ ก้้้้้้้้้้ | perl utfinfo.pl
Got 64 uchars
Char: 'ก' u: 3585 [0x0E01] b: 224,184,129 [0xE0,0xB8,0x81] n: THAI CHARACTER KO KAI [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: '็' u: 3655 [0x0E47] b: 224,185,135 [0xE0,0xB9,0x87] n: THAI CHARACTER MAITAIKHU [Thai]
Char: ' ' u: 32 [0x0020] b: 32 [0x20] n: SPACE [Basic Latin]
Char: 'ก' u: 3585 [0x0E01] b: 224,184,129 [0xE0,0xB8,0x81] n: THAI CHARACTER KO KAI [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: 'ิ' u: 3636 [0x0E34] b: 224,184,180 [0xE0,0xB8,0xB4] n: THAI CHARACTER SARA I [Thai]
Char: ' ' u: 32 [0x0020] b: 32 [0x20] n: SPACE [Basic Latin]
Char: 'ก' u: 3585 [0x0E01] b: 224,184,129 [0xE0,0xB8,0x81] n: THAI CHARACTER KO KAI [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]
Char: '้' u: 3657 [0x0E49] b: 224,185,137 [0xE0,0xB9,0x89] n: THAI CHARACTER MAI THO [Thai]