Undefined Character (U+138C8)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𓣈` `𓣈`
UTF-8 Encoding:	`0xF0 0x93 0xA3 0x88`
UTF-16 Encoding:	`0xD80E 0xDCC8`
UTF-32 Encoding:	`0x000138C8`

References