koi8-r - Russian character set encoded in octal, decimal, and hexadecimal
RFC 1489 defines an 8-bit character set, KOI8-R. KOI8-R encodes the characters used in Russian.
The following table displays the characters in KOI8-R that are printable and unlisted in the ascii(7) manual page.
TABLE
The differences with KOI8-U are in the hex positions A4, A6, A7, AD, B4, B6, B7, and BD.