Roadmaps to Unicode
Plane 2: Supplementary Ideographic Plane
Summary
The following table shows a map of the actual and proposed allocation on Plane 2, the SIP (Supplementary Ideographic Plane). A description of the presentation conventions used in the table is at the bottom of this page. The SIP is intended for encoding of additional repertoire of Unified CJK ideographs, Compatibility CJK ideographs, and CJK components. Other CJK related characters, including strokes, radicals, and punctuation are encoded on the BMP and SMP.
Status
This document is informative and those parts reflecting proposals are of a provisional nature. Please send corrigenda and other comments to the authors using the online contact form.
Plane 2 is tentatively mapped out to the following zones:
- 20000-2A6DF CJK Unified Ideographs Extension B
- 2A6E0-2A6FF unassigned (32)
- 2A700-2B73F CJK Unified Ideographs Extension C
- 2B740-2B81F CJK Unified Ideographs Extension D
- 2B820-2CEAF CJK Unified Ideographs Extension E
- 2CEB0-2EBEF CJK Unified Ideographs Extension F
- 2EBF0-2EE5F CJK Unified Ideographs Extension I
- 2EE60-2F7FF unassigned (2464)
- 2F800-2FA1F CJK Compatibility Ideographs Supplement
- 2FA20-2FA9F CJK Unified Ideographs Components A
- 2FAA0-2FC1F CJK Unified Ideographs Components B
- 2FC20-2FFFD unassigned (990)
Presentation conventions
- Text on Blue indicates a published character collection. Text on Violet indicates a published character collection with predominant right-to-left directionality. For blocks containing assigned graphic or format characters, there is a link to the charts on the Unicode web site.
- (Text between parentheses) indicates scripts which have been formally accepted by UTC or WG2 for processing toward inclusion in the standard. There is generally a link to a mature proposal for the script.
- (Text between parentheses) indicates scripts for which proposals have been formally submitted to the UTC or to WG2. There is generally a link to the formal proposal.
- ¿Text between question marks? indicates scripts for which detailed proposals have not yet been written. There may be a link to an exploratory code table.
- Color highlighting is used to indicate blocks and unassigned ranges which default to right-to-left character behavior.
- Grey shading is used to indicate ranges of control characters and noncharacters.
NOTE: When scripts are actually proposed to the UTC or to WG2, the practice is to "front" them in the zones to which they are tentatively allocated, and to adjust the block size with regard to the allocation proposed.
The size and location of the unallocated script blocks are merely proposals based on the current state of planning. The size and location of a script may change during final allocation of the script.
The Script Encoding Working Group maintains and updates this document as a service to the Unicode Technical Committee and to ISO/IEC JTC1/SC2/WG2.
Pre-2026 archive of roadmap to this plane here.