Undefined Character (U+3FFFF)

Plane:unassigned, U+30000 - U+3FFFF[1]
HTML Entity:
  • 
  • 
UTF-8 Encoding:0xF0 0xBF 0xBF 0xBF
UTF-16 Encoding:0xD8BF 0xDFFF
UTF-32 Encoding:0x0003FFFF

References