The flag for United Nations. May show as the letters UN. This two letter regional indicator pair is an exceptional reservation as part of ISO 3166.
The Flag: United Nations emoji is a flag sequence combining ? Regional Indicator Symbol Letter U and ? Regional Indicator Symbol Letter N. These display as a single emoji on supported platforms.
Flag: United Nations was added to Emoji 4.0 in 2016.
U+1F1FA
U+1F1F3
?? Regional indicator symbol letter u
?? Regional indicator symbol letter n