The flag for Bulgaria, which may show as the letters BG on some platforms.
The Flag: Bulgaria emoji is a flag sequence combining ? Regional Indicator Symbol Letter B and ? Regional Indicator Symbol Letter G. These display as a single emoji on supported platforms.
Flag: Bulgaria was added to Emoji 1.0 in 2015.
U+1F1E7
U+1F1EC
?? Regional indicator symbol letter b
?? Regional indicator symbol letter g