Block from U+16800 to U+16A3F. This block was introduced in Unicode version 6.0 (2010). It contains 569 codepoints.
The Wikipedia provides the following information on block Bamum Supplement:
Bamum Supplement is a Unicode block containing the characters of the historic stage A-F of the Bamum script, used for writing the Bamum language of western Cameroon. The modern stage G characters, which include many characters used for stage A-F orthographies, are included in the Bamum block.