Undefined Character (U+1CDF9)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𜷹` `𜷹`
UTF-8 Encoding:	`0xF0 0x9C 0xB7 0xB9`
UTF-16 Encoding:	`0xD833 0xDDF9`
UTF-32 Encoding:	`0x0001CDF9`

References