Undefined Character (U+FFFE)

Block:	Specials, U+FFF0 - U+FFFF^[1]
Plane:	Basic Multilingual Plane, U+0000 - U+FFFF^[1]
HTML Entity:	`` ``
UTF-8 Encoding:	`0xEF 0xBF 0xBE`
UTF-16 Encoding:	`0xFFFE`
UTF-32 Encoding:	`0x0000FFFE`

References