83 characters in the Cham Unicode block.
U+AA00CHAM LETTER AU+AA01CHAM LETTER IU+AA02CHAM LETTER UU+AA03CHAM LETTER EU+AA04CHAM LETTER AIU+AA05CHAM LETTER OU+AA06CHAM LETTER KAU+AA07CHAM LETTER KHAU+AA08CHAM LETTER GAU+AA09CHAM LETTER GHAU+AA0ACHAM LETTER NGUEU+AA0BCHAM LETTER NGAU+AA0CCHAM LETTER CHAU+AA0DCHAM LETTER CHHAU+AA0ECHAM LETTER JAU+AA0FCHAM LETTER JHAU+AA10CHAM LETTER NHUEU+AA11CHAM LETTER NHAU+AA12CHAM LETTER NHJAU+AA13CHAM LETTER TAU+AA14CHAM LETTER THAU+AA15CHAM LETTER DAU+AA16CHAM LETTER DHAU+AA17CHAM LETTER NUEU+AA18CHAM LETTER NAU+AA19CHAM LETTER DDAU+AA1ACHAM LETTER PAU+AA1BCHAM LETTER PPAU+AA1CCHAM LETTER PHAU+AA1DCHAM LETTER BAU+AA1ECHAM LETTER BHAU+AA1FCHAM LETTER MUEU+AA20CHAM LETTER MAU+AA21CHAM LETTER BBAU+AA22CHAM LETTER YAU+AA23CHAM LETTER RAU+AA24CHAM LETTER LAU+AA25CHAM LETTER VAU+AA26CHAM LETTER SSAU+AA27CHAM LETTER SAU+AA28CHAM LETTER HAU+AA29CHAM VOWEL SIGN AAU+AA2ACHAM VOWEL SIGN IU+AA2BCHAM VOWEL SIGN IIU+AA2CCHAM VOWEL SIGN EIU+AA2DCHAM VOWEL SIGN UU+AA2ECHAM VOWEL SIGN OEU+AA2FCHAM VOWEL SIGN OU+AA30CHAM VOWEL SIGN AIU+AA31CHAM VOWEL SIGN AUU+AA32CHAM VOWEL SIGN UEU+AA33CHAM CONSONANT SIGN YAU+AA34CHAM CONSONANT SIGN RAU+AA35CHAM CONSONANT SIGN LAU+AA36CHAM CONSONANT SIGN WAU+AA40CHAM LETTER FINAL KU+AA41CHAM LETTER FINAL GU+AA42CHAM LETTER FINAL NGU+AA43CHAM CONSONANT SIGN FINAL NGU+AA44CHAM LETTER FINAL CHU+AA45CHAM LETTER FINAL TU+AA46CHAM LETTER FINAL NU+AA47CHAM LETTER FINAL PU+AA48CHAM LETTER FINAL YU+AA49CHAM LETTER FINAL RU+AA4ACHAM LETTER FINAL LU+AA4BCHAM LETTER FINAL SSU+AA4CCHAM CONSONANT SIGN FINAL MU+AA4DCHAM CONSONANT SIGN FINAL HU+AA50CHAM DIGIT ZEROU+AA51CHAM DIGIT ONEU+AA52CHAM DIGIT TWOU+AA53CHAM DIGIT THREEU+AA54CHAM DIGIT FOURU+AA55CHAM DIGIT FIVEU+AA56CHAM DIGIT SIXU+AA57CHAM DIGIT SEVENU+AA58CHAM DIGIT EIGHTU+AA59CHAM DIGIT NINEU+AA5CCHAM PUNCTUATION SPIRALU+AA5DCHAM PUNCTUATION DANDAU+AA5ECHAM PUNCTUATION DOUBLE DANDAU+AA5FCHAM PUNCTUATION TRIPLE DANDA