As character names:

U+FFED HALFWIDTH BLACK SQUARE character (￭)

As raw characters:

￭

As a string of HTML entities:

￭

Decoder output:

Byte number 1 is decimal 240, hex 0xF0, octal \360, binary 11110000
This is the first byte of a 4 byte sequence.

Byte number 2 is decimal 143, hex 0x8F, octal \217, binary 10001111
This is continuation byte 1, expecting 2 more.

Byte number 3 is decimal 191, hex 0xBF, octal \277, binary 10111111
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 173, hex 0xAD, octal \255, binary 10101101
This is continuation byte 3, expecting 0 more.

U+FFED	HALFWIDTH BLACK SQUARE
	# <narrow> 25A0