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Current Allocation

The following tables give the statistics for currently unassigned (reserved) code points in the Basic Multilingual Plane (BMP) and in the Supplementary Multilingual Plane (SMP) for Unicode 6.3.0.

First, a few definitions.

column
A set of 16 Unicode code points that all have the same "div 16" value, e.g. U+2040..U+204F or U+1D120..U+1D12F. (The name comes from the fact that they occupy a vertical column in the character charts.)
empty column
A column where none of the code points are designated.
partial column
A column where some code points are designated and some are reserved.

For practical reasons, the Unicode Technical Committee avoids splitting character blocks across columns. For that reason, it is important in new allocation to distinguish code points from these sources:

  • reserved code points not in blocks
  • reserved code points in empty columns (within assigned blocks)
  • reserved code points in partially allocated columns (within assigned blocks)
  • designated code points (includes assigned characters, private use, surrogate code points, and noncharacters—all of which are unavailable for assigning new characters) 

Here is the breakdown in Unicode 6.3.0:

BMP SUMMARY

  Reserved Designated
  Not in Blocks in Empty Columns in Partial Columns

Code Points

448

624

1,251

63,213

Columns

28

39

n/a

4,029

 

SMP SUMMARY

  Reserved Designated
  Not in Blocks in Empty Columns in Partial Columns

Code Points

56,192

1,072

646

7,626

Columns

3,512

67

n/a

517

The following lists the reserved code points in empty columns in more detail. It is separated into two parts: 1. empty columns in unassigned ranges (or areas), and 2. empty columns in assigned blocks. The numbers in the second column represent the number of reserved code points in each range.

Reserved Ranges Not in Blocks

0860..089F64 General Scripts Area - Right to Left
1AB0..1AFF80 General Scripts Area
1C80..1CBF64 General Scripts Area
2FE0..2FEF16 Symbols Area
A9E0..A9FF32 General Scripts Area
AB30..ABBF144 General Scripts Area
10200..1027F128 General Scripts Area
102E0..102FF16 General Scripts Area
10350..1037F48 General Scripts Area
103E0..103FF16 General Scripts Area
104B0..107FF848 General Scripts Area
10860..108FF160 General Scripts Area - Right to Left
10940..1097F64 General Scripts Area - Right to Left
10A80..10AFF128 General Scripts Area - Right to Left
10B80..10BFF128 General Scripts Area - Right to Left
10C50..10E5F528 General Scripts Area - Right to Left
10E80..10FFF384 General Scripts Area - Right to Left
11150..1117F48 General Scripts Area
111E0..1167F1,184 General Scripts Area
116D0..11FFF2,352 General Scripts Area
12480..12FFF2,944 General Scripts Area
13430..167FF13,264 General Scripts Area
16A40..16EFF1,216 General Scripts Area
16FA0..1AFFF16,480 General Scripts Area
1B100..1CFFF7,936 General Scripts Area
1D250..1D2FF176 Symbols Area
1D800..1E7FF4,096 Symbols Area
1E800..1EBFF1,024 General Scripts Area - Right to Left
1EC00..1EDFF512 Symbols Area - Right to Left
1EF00..1EFFF256 Symbols Area - Right to Left
1F650..1F67F48 Symbols Area
1F780..1FFFD2,094 Symbols Area

Empty Columns in Assigned Blocks

08B0..08DF48 [Arabic Extended-A]
0DE0..0DEF16 [Sinhala]
0E60..0E7F32 [Thai]
0EE0..0EFF32 [Lao]
0FE0..0FFF32 [Tibetan]
20C0..20CF16 [Currency Symbols]
2430..243F16 [Control Pictures]
2450..245F16 [Optical Character Recognition]
2B60..2BFF160 [Miscellaneous Symbols And Arrows]
2E40..2E7F64 [Supplemental Punctuation]
9FD0..9FFF48 [CJK Unified Ideographs]
A630..A63F16 [Vai]
A7B0..A7EF64 [Latin Extended-D]
FAE0..FAFF32 [CJK Compatibility Ideographs]
FD40..FD4F16 [Arabic Presentation Forms-A]
10060..1007F32 [Linear B Syllabary]
101A0..101CF48 [Ancient Symbols]
109C0..109FF64 [Meroitic Cursive]
11070..1107F16 [Brahmi]
12370..123FF144 [Cuneiform]
1B010..1B0FF230 [Kana Supplement]
1D1E0..1D1FF32 [Musical Symbols]
1EEC0..1EEEF48 [Arabic Mathematical Alphabetic Symbols]
1F0E0..1F0FF32 [Playing Cards]
1F1A0..1F1DF64 [Enclosed Alphanumeric Supplement]
1F260..1F2FF160 [Enclosed Ideographic Supplement]
1F3D0..1F3DF16 [Miscellaneous Symbols And Pictographs]
1F540..1F54F16 [Miscellaneous Symbols And Pictographs]
1F570..1F5EF128 [Miscellaneous Symbols And Pictographs]
1F6D0..1F6FF48 [Transport And Map Symbols]