Undefined Character (U+1DF00)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𝼀` `𝼀`
UTF-8 Encoding:	`0xF0 0x9D 0xBC 0x80`
UTF-16 Encoding:	`0xD837 0xDF00`
UTF-32 Encoding:	`0x0001DF00`

References