x1F1

x1F1 is not a standard term with a single, universal definition. In practice, it often appears as a string component or prefix in contexts that deal with hexadecimal code points, Unicode notation, or data labels, and may be read as a reference to the digits '1F1' in hex rather than as an independent concept. The most common association is with Unicode's regional indicator symbols, a range from U+1F1E6 to U+1F1FF that encodes two-letter country codes for flag emoji.

In Unicode, the regional indicator symbols are used in pairs to form the flags of countries and territories. For example, the sequence U+1F1FA U+1F1F8 represents the United States, while U+1F1EB U+1F1F7 represents France. The two-symbol combination corresponds to ISO country codes and appears as the familiar flag emoji in many platforms when rendered.

In programming and data formats, the substring '1F1' appears in hex code points (for example U+1F1E6). Some languages express such code points with escapes like \u{1F1E6} or 0x1F1E6; the exact syntax varies by language. The literal 'x1F1' is not a standardized prefix.

Because x1F1 does not designate a fixed concept, its meaning depends on context. If encountered in a specification, database, or code, consult accompanying documentation or the surrounding fields to determine whether it refers to a code point, a label, or another identifier.

See also Unicode, emoji, regional indicator symbols, hexadecimal notation.