The flag for Australia, which may show as the letters AU on some platforms.
The Flag: Australia emoji is a flag sequence combining ? Regional Indicator Symbol Letter A and ? Regional Indicator Symbol Letter U. These display as a single emoji on supported platforms.
Flag: Australia was added to Emoji 1.0 in 2015.
U+1F1E6
U+1F1FA
?? Regional indicator symbol letter a
?? Regional indicator symbol letter u