Block from U+1000 to U+109F. This block was introduced in Unicode version 3.0 (1999). It contains 160 codepoints.
The Wikipedia provides the following information on block Myanmar:
Myanmar is a Unicode block containing characters for the Burmese, Mon, Karen, Kayah, Shan, and Palaung languages of Myamar. It is also used to write Pali and Sanskrit in Myanmar.