Undefined Character (U+1BBFF)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𛯿` `𛯿`
UTF-8 Encoding:	`0xF0 0x9B 0xAF 0xBF`
UTF-16 Encoding:	`0xD82E 0xDFFF`
UTF-32 Encoding:	`0x0001BBFF`

References