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A six-bit code, with added odd [[parity bit]], is used on Track 1 of [[magnetic stripe card]]s, as specified in [[ISO/IEC 7811]]-2.
==={{anchor|ECMA-1}}DEC six-bit code===
A DEC SIXBIT code including a few control characters—along with [[Shift Out and Shift In characters|SO/SI]], allowing code extension—was specified as [[Ecma International|ECMA]]-[http://www.ecma-international.org/publications/files/ECMA-ST-WITHDRAWN/ECMA-1,%201st%20Edition,%20March%201963.pdf 1] in 1963 (see [[#ASCII-variants|below]]). Another, less common, variant is obtained by just stripping the high bit of an ASCII code in 32 - 95 range (codes 32 - 63 remain at their positions, higher values have 64 subtracted from them). Such variant was sometimes used on DEC's [[PDP-8]] (1965).
===FIELDATA six-bit code===
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