Undefined Character (U+AAD1)

Block:	Tai Viet, U+AA80 - U+AADF^[1]
Plane:	Basic Multilingual Plane, U+0000 - U+FFFF^[1]
HTML Entity:	`꫑` `꫑`
UTF-8 Encoding:	`0xEA 0xAB 0x91`
UTF-16 Encoding:	`0xAAD1`
UTF-32 Encoding:	`0x0000AAD1`

References