Undefined Character (U+10EFE)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𐻾` `𐻾`
UTF-8 Encoding:	`0xF0 0x90 0xBB 0xBE`
UTF-16 Encoding:	`0xD803 0xDEFE`
UTF-32 Encoding:	`0x00010EFE`

References