Regional Indicator Symbol Letter O (U+1F1F4) is one of the 26 special Regional Indicator characters used to build flag emoji from two-letter country codes. On its own, it typically appears as a visible boxed or squared capital “O” glyph, but it is primarily intended to be combined with another Regional Indicator to form a single country flag emoji. When two Regional Indicators are placed together and match a valid ISO 3166-1 alpha-2 code, most modern platforms render them as one flag; if the pair is unrecognized or unsupported, the two letters usually remain visible as separate symbols. This mechanism does not use a zero width joiner or skin tone modifiers, and variation selectors are not involved.
In text segmentation, Regional Indicators have special grapheme cluster rules that pair them from the end of a run, so a valid two-letter pair is treated as one cluster for display and cursor movement. The character does not modify other emoji and is not a standalone fully qualified emoji by itself; its main role is as a component in two-letter flag sequences. Behavior varies by platform and font: current iOS and other major systems generally show recognized pairs as flags, while a single symbol or an invalid pair may render as boxed letters or fallback glyphs. Do not confuse Regional Indicators with emoji Tag characters used for subdivision flags; Tag sequences rely on U+1F3F4 (black flag) plus tag letters, whereas country flags rely solely on two Regional Indicator symbols like this one.
The letter O is represented using a Unicode regional indicator symbol.
| Twitter Emoji Popularity (Rank) | 1077 of 2393 |
| Apple/iOS Picture |  |
| Google Android Picture |  |
| Google Hangouts Picture | Image not available |
| Twitter.com Picture | Image not available |
| LG Emoji Picture | Image not available |
| Samsung Emoji Picture | Image not available |
| Phantom Open Emoji Picture | Not created yet |
| ASCII Conversion | |
| "Short Code" Name | |
| Keywords |
Regional Indicator Symbols can be combined to represent different countries. Two letter country codes follow the ISO 3166 standard found on iso.org.
| Emoji Code Version | iOS 5 - Current |
|---|---|
| UTF-8 Unicode Character(s) | 🇴 |
| UTF-8 Character Count | 1 |
| Character(s) In Input | |
| AppleColorEmoji Font (available in OSX/iOS) | 🇴 |
| Decimal HTML Entity | 🇴 |
| Hexadecimal HTML Entity | 🇴 |
| Hex Code Point(s) | 1f1f4 |
| Formal Unicode Notation | U+1F1F4 |
| Decimal Code Point(s) | 127476 | UTF-8 Hex (C Syntax) | 0xF0 0x9F 0x87 0xB4 |
| UTF-8 Hex Bytes | F0 9F 87 B4 |
| UTF-8 Octal Bytes | 360 237 207 264 |
| UTF-16 Hex (C Syntax) | 0xD83C 0xDDF4 |
| UTF-16 Hex | d83cddf4 |
| UTF-16 Dec | 55356 56820 |
| UTF-32 Hex (C Syntax) | 0x0001F1F4 |
| UTF-32 Hex | 01F1F4 |
| UTF-32 Dec | 127476 |
| Python Src | u"\U0001F1F4" |
| PHP Src | "\xf0\x9f\x87\xb4" |
| C/C++/Java Src | "\uD83C\uDDF4" |
