Undefined Character (U+1DFE8)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𝿨` `𝿨`
UTF-8 Encoding:	`0xF0 0x9D 0xBF 0xA8`
UTF-16 Encoding:	`0xD837 0xDFE8`
UTF-32 Encoding:	`0x0001DFE8`

References