64 characters in the Enclosed Ideographic Supplement Unicode block.
U+1F200SQUARE HIRAGANA HOKAU+1F201SQUARED KATAKANA KOKOU+1F202SQUARED KATAKANA SAU+1F210SQUARED CJK UNIFIED IDEOGRAPH-624BU+1F211SQUARED CJK UNIFIED IDEOGRAPH-5B57U+1F212SQUARED CJK UNIFIED IDEOGRAPH-53CCU+1F213SQUARED KATAKANA DEU+1F214SQUARED CJK UNIFIED IDEOGRAPH-4E8CU+1F215SQUARED CJK UNIFIED IDEOGRAPH-591AU+1F216SQUARED CJK UNIFIED IDEOGRAPH-89E3U+1F217SQUARED CJK UNIFIED IDEOGRAPH-5929U+1F218SQUARED CJK UNIFIED IDEOGRAPH-4EA4U+1F219SQUARED CJK UNIFIED IDEOGRAPH-6620U+1F21ASQUARED CJK UNIFIED IDEOGRAPH-7121U+1F21BSQUARED CJK UNIFIED IDEOGRAPH-6599U+1F21CSQUARED CJK UNIFIED IDEOGRAPH-524DU+1F21DSQUARED CJK UNIFIED IDEOGRAPH-5F8CU+1F21ESQUARED CJK UNIFIED IDEOGRAPH-518DU+1F21FSQUARED CJK UNIFIED IDEOGRAPH-65B0U+1F220SQUARED CJK UNIFIED IDEOGRAPH-521DU+1F221SQUARED CJK UNIFIED IDEOGRAPH-7D42U+1F222SQUARED CJK UNIFIED IDEOGRAPH-751FU+1F223SQUARED CJK UNIFIED IDEOGRAPH-8CA9U+1F224SQUARED CJK UNIFIED IDEOGRAPH-58F0U+1F225SQUARED CJK UNIFIED IDEOGRAPH-5439U+1F226SQUARED CJK UNIFIED IDEOGRAPH-6F14U+1F227SQUARED CJK UNIFIED IDEOGRAPH-6295U+1F228SQUARED CJK UNIFIED IDEOGRAPH-6355U+1F229SQUARED CJK UNIFIED IDEOGRAPH-4E00U+1F22ASQUARED CJK UNIFIED IDEOGRAPH-4E09U+1F22BSQUARED CJK UNIFIED IDEOGRAPH-904AU+1F22CSQUARED CJK UNIFIED IDEOGRAPH-5DE6U+1F22DSQUARED CJK UNIFIED IDEOGRAPH-4E2DU+1F22ESQUARED CJK UNIFIED IDEOGRAPH-53F3U+1F22FSQUARED CJK UNIFIED IDEOGRAPH-6307U+1F230SQUARED CJK UNIFIED IDEOGRAPH-8D70U+1F231SQUARED CJK UNIFIED IDEOGRAPH-6253U+1F232SQUARED CJK UNIFIED IDEOGRAPH-7981U+1F233SQUARED CJK UNIFIED IDEOGRAPH-7A7AU+1F234SQUARED CJK UNIFIED IDEOGRAPH-5408U+1F235SQUARED CJK UNIFIED IDEOGRAPH-6E80U+1F236SQUARED CJK UNIFIED IDEOGRAPH-6709U+1F237SQUARED CJK UNIFIED IDEOGRAPH-6708U+1F238SQUARED CJK UNIFIED IDEOGRAPH-7533U+1F239SQUARED CJK UNIFIED IDEOGRAPH-5272U+1F23ASQUARED CJK UNIFIED IDEOGRAPH-55B6U+1F23BSQUARED CJK UNIFIED IDEOGRAPH-914DU+1F240TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-672CU+1F241TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-4E09U+1F242TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-4E8CU+1F243TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-5B89U+1F244TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-70B9U+1F245TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-6253U+1F246TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-76D7U+1F247TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-52DDU+1F248TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-6557U+1F250CIRCLED IDEOGRAPH ADVANTAGEU+1F251CIRCLED IDEOGRAPH ACCEPTU+1F260ROUNDED SYMBOL FOR FUU+1F261ROUNDED SYMBOL FOR LUU+1F262ROUNDED SYMBOL FOR SHOUU+1F263ROUNDED SYMBOL FOR XIU+1F264ROUNDED SYMBOL FOR SHUANGXIU+1F265ROUNDED SYMBOL FOR CAI