As character names:

U+303B VERTICAL IDEOGRAPHIC ITERATION MARK character (〻)

As raw characters:

〻

As a string of HTML entities:

〻

Decoder output:

Byte number 1 is decimal 227, hex 0xE3, octal \343, binary 11100011
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 128, hex 0x80, octal \200, binary 10000000
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 187, hex 0xBB, octal \273, binary 10111011
This is continuation byte 2, expecting 0 more.

U+303B	VERTICAL IDEOGRAPHIC ITERATION MARK