U0400U04FF
The range U+0400 to U+04FF represents the Cyrillic block in the Unicode standard. This block contains the central Cyrillic script used to write many languages across Eastern Europe and northern and central Asia, including Russian, Ukrainian, Bulgarian, Serbian, Belarusian, and numerous minority languages. It includes both uppercase and lowercase letters, as well as several language-specific forms that extend beyond the core alphabet.
The 256 code points in this block cover the standard Cyrillic letters as well as additional characters
Usage and encoding details: The Cyrillic block is part of the basic Cyrillic script and forms the