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 sequence of the 🇺 Regional Indicator Symbol Letter U and 🇳 Regional Indicator Symbol Letter N emojis. These display as a single emoji on supported platforms.
Flag: United Nations was added to Emoji 4.0 in 2016.