The original version from November 1988 corresponds to ISO 646. The current version is from September 1992.
At the beginning was the International Telegraph Alphabet No. 2#ITA2, a five bits code.
IA5 is an improvement based on seven bits bytes.
International Telegraph Alphabet No. 2#ITA2
- 5 T.50 (09/1992) In force
- 4 T.50 (11/1988) Superseded
- 3 T.50 (10/1984) Superseded
- 2 V.3 (11/1980) Superseded
- 1 V.3 (10/1976) Superseded
This standard is referenced by other standards such as RFC3966.
This standard is referenced by other standards such as RFC 3939 - Calling Line Identification for Voice Mail Messages.
- Identical standard: ISO 646:1991 (Twinned)
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