Home › Entities › character_set › ISO/IEC 646

ISO/IEC 646

international standard for 7-bit ASCII and national modifications
Intangible character_set Q764925

Facts

5 properties
Instance of
character set, IEC standard, ISO standard[2][3]
Follows
ASCII[4]
Followed by
Universal Character Set, T.50[5][6]
Has part(s)
ISO/IEC 646:1991: Information technology—ISO 7-bit coded character set for information interchange[7]
Has parts
ISO/IEC 646:1991: Information technology—ISO 7-bit coded character set for information interchange
🏷️ Also known as
en IA5 en ISO/IEC 646 en ISO 646 en International Alphabet No. 5 ar آيزو/آي إي سي 646 de Internationales Alphabet Nr. 5 de International Alphabet No. 5 de IA5 fr alphabet international numéro 5 fr ISO/CEI 646 zh 國際標準化組織/國際電工協會646
🔖 Identifiers · 5
Dictionary of Archives Terminology ID
iso-646
File Format Wiki page ID
ISO_646
Freebase ID
/m/01bjl8
ISO standard
646
ITU/ISO/IEC object ID
1.0.646

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Followed by 2
Universal Character Set, T.50
Followed by (predecessor) 2
Universal Character Set, T.50
Named after 1
iso646.h
← Based on 1
The Unicode Standard
Press Enter · cited answer in seconds

Summary

ISO/IEC 646 is a character set[1].

Body

Works and Contributions

Things named for ISO/IEC 646 include iso646.h[8], a C header file[9].

Why It Matters

Entities named for it include iso646.h[8], a C header file[9].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [8] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [9] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). ISO/IEC 646. Retrieved November 4, 2026, from https://4ort.xyz/entity/iso-iec-646
MLA “ISO/IEC 646.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Nov. 2026, https://4ort.xyz/entity/iso-iec-646.
BibTeX @misc{4ortxyz_iso-iec-646_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{ISO/IEC 646}}, year = {2026}, url = {https://4ort.xyz/entity/iso-iec-646}, note = {Accessed: 2026-11-04}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): ISO/IEC 646 — https://4ort.xyz/entity/iso-iec-646 (retrieved 2026-11-04)

Canonical URL: https://4ort.xyz/entity/iso-iec-646 · Last refreshed: