グレーのバックは、後発のRFCにより廃棄されたことを示す。

(原典:rfc-index.txt, std-index.txt

STD0063 : UTF-8, a transformation format of ISO 10646
RFC3629 UTF-8, a transformation format of ISO 10646 F. Yergeau Obsoletes RFC2279
November 2003 TXT=33856 bytes STANDARD
RFC2279 UTF-8, a transformation format of ISO 10646 F. Yergeau Obsoletes RFC2044
Obsoleted by RFC3629
January 1998 TXT=21634 bytes DRAFT STANDARD
RFC2044 UTF-8, a transformation format of Unicode and ISO 10646 F. Yergeau Obsoleted by RFC2279
October 1996 TXT=11932 bytes INFORMATIONAL