CJK Compatibility - Reference.org

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Range U+3300..U+33FF
(256 code points)

Plane BMP

Scripts Katakana (88 char.)
Common (168 char.)

Assigned 256 code points

Unused 0 reserved code points

1.0.0 (1991) 187 (+187)

1.1 (1993) 249 (+62)

4.0 (2003) 256 (+7)

Additional information

CJK Compatibility

Unicode character block

The CJK Compatibility Unicode block contains square symbols for both CJK and Latin alphanumeric characters, created for compatibility with East Asian character sets. Originally divided into CJK Squared Words and CJK Squared Abbreviations, these characters have distinct appearances in horizontal and vertical text layouts. Notably, the block includes Japanese era symbols such as Heisei, Shōwa, Taishō, and Meiji, used in legacy sets like NEC special characters and JIS X 0213. The Reiwa era symbol, however, is included in the Enclosed CJK Letters and Months block.

Version	Final code points⁴	Count	L2 ID	WG2 ID	Document
1.0.0	U+3300..3357, 337B..33DD	187			(to be determined)
				N2956	Freytag, Asmus (2005-08-12), "Representative Glyph for U+33AC SQUARE GPA", Unicode Consortium Liaison Report for WG2 Meeting #47
				N2953 (pdf, doc)	Umamaheswaran, V. S. (2006-02-16), "M47.16 (Miscellaneous glyph defects)", Unconfirmed minutes of WG 2 meeting 47, Sophia Antipolis, France; 2005-09-12/15
1.1	U+3358..3376, 33E0..33FE	62			(to be determined)
4.0	U+3377..337A, 33DE..33DF, 33FF	7	L2/99-353	N2056	"3", Amendment of the part concerning the Korean characters in ISO/IEC 10646-1:1998 amendment 5, 1999-07-29
			L2/99-380		Proposal for a New Work item (NP) to amend the Korean part in ISO/IEC 10646-1:1993, 1999-12-07
			L2/99-380.3		Annex B, Special characters compatible with KPS 9566-97 (To be extended), 1999-12-07
			L2/00-084	N2182	"3", Amendment of the part concerning the Korean characters in ISO/IEC 10646-1:1998 amendment 5 (Cover page and outline of proposal L2/99-380), 1999-12-07
			L2/99-382		Whistler, Ken (1999-12-09), "2.3", Comments to accompany a U.S. NO vote on JTC1 N5999, SC2 N3393, New Work item proposal (NP) for an amendment of the Korean part of ISO/IEC 10646-1:1993
			L2/00-066	N2170 (pdf, doc)	"3", The technical justification of the proposal to amend the Korean character part of ISO/IEC 10646-1 (proposed addition of 79 symbolic characters), 2000-02-10
			L2/00-073	N2167	Karlsson, Kent (2000-03-02), Comments on DPRK New Work Item proposal on Korean characters
			L2/00-285	N2244	Proposal for the Addition of 82 Symbols to ISO/IEC 10646-1:2000, 2000-08-10
			L2/00-291		Everson, Michael (2000-08-30), Comments to Korean proposals (L2/00-284 - 289)
				N2282	Report of the meeting of the Korean script ad hoc group, 2000-09-21
			L2/01-349	N2374R	Proposal to add of 70 symbols to ISO/IEC 10646-1:2000, 2001-09-03
			L2/01-387	N2390	Kim, Kyongsok (2001-10-13), ROK's Comments about DPRK's proposal, WG2 N 2374, to add 70 symbols to ISO/IEC 10646-1:2000
			L2/01-388	N2392	Kim, Kyongsok (2001-10-16), A Report of Korean Script ad hoc group meeting on Oct. 15, 2001
			L2/01-420		Whistler, Ken (2001-10-30), "f. Miscellaneous symbol additions from DPRK standard", WG2 (Singapore) Resolution Consent Docket for UTC
			L2/01-458	N2407	Umamaheswaran, V. S. (2001-11-16), Request to Korean ad hoc group to generate mapping tables between ROK and DPRK national standards

Block

History

See also

References