Undefined Character (U+138E8)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𓣨` `𓣨`
UTF-8 Encoding:	`0xF0 0x93 0xA3 0xA8`
UTF-16 Encoding:	`0xD80E 0xDCE8`
UTF-32 Encoding:	`0x000138E8`

References