ITU T.61

While ASN.1 does see wide use and the T.61 character set is used on some standards using ASN.1 (for example in RSA Security's PKCS #9), the 1988-11 version of the T.61 standard itself was superseded by a never-published 1993-03 version; the 1993-03 version was withdrawn by the ITU-T. The 1988-11 version is still available.

T.61 was one of the encodings supported by Mozilla software in email and HTML until 2014, when the supported encodings were limited to those in the WHATWG Encoding Standard (although T.61 remained supported for LDAP).

Code page layout

The following table maps the T.61 characters to their equivalent Unicode code points.

See ITU T.51 for a description of how the accents at 0xC0..CF worked. They prefix the letters, as opposed to postfix used by Unicode.