Padauk supports the following Unicode blocks:

Unicode block Padauk support
Myanmar (1000..109F) complete
Myanmar Extended-B (A9E0..A9FF) complete
Myanmar Extended-A (AA60..AA7F) complete
Kayah Li (A900..A92F) A92E
Basic Latin complete

The font also includes a selection of characters from the General Punctuation block (such as various-sized spaces, dashes and quotes).

Basic Latin support is provided as a convenience, e.g., for use in menus or for displaying markup in text files. These fonts are not intended for extensive Latin script use.

A utility such as SIL ViewGlyph can be used to examine the exact repertoire of each font.

See Unicode Technical Note #11 for the authoritative description of how the Myanmar script is used in Unicode: Representing Myanmar in Unicode: Details and Examples.