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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 7.0.0.

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 7.0.0:

BMP SUMMARY

  Reserved Designated
  Not in Blocks in Empty Columns in Partial Columns

Code Points

224

480

1,294

63,538

Columns

14

30

n/a

4,052

 

SMP SUMMARY

  Reserved Designated
  Not in Blocks in Empty Columns in Partial Columns

Code Points

53,598

976

956

10,006

Columns

3,350

61

n/a

685

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
1C80..1CBF64 General Scripts Area
2FE0..2FEF16 CJK Miscellaneous Area
AB70..ABBF80 General Scripts Area
10200..1027F128 General Scripts Area
103E0..103FF32 General Scripts Area
104B0..104FF80 General Scripts Area
10570..105FF144 General Scripts Area
10780..107FF128 General Scripts Area
108B0..108FF80 General Scripts Area - Right to Left
10940..1097F64 General Scripts Area - Right to Left
10AA0..10ABF32 General Scripts Area - Right to Left
10BB0..10BFF80 General Scripts Area - Right to Left
10C50..10E5F528 General Scripts Area - Right to Left
10E80..10FFF384 General Scripts Area - Right to Left
11250..112AF96 General Scripts Area
11380..1147F256 General Scripts Area
114E0..1157F160 General Scripts Area
11660..1167F32 General Scripts Area
116D0..1189F464 General Scripts Area
11900..11ABF448 General Scripts Area
11B00..11FFF1,280 General Scripts Area
12480..12FFF2,944 General Scripts Area
13430..167FF13,264 General Scripts Area
16A70..16ACF96 General Scripts Area
16B90..16EFF880 General Scripts Area
16FA0..1AFFF16,480 General Scripts Area
1B100..1BBFF2,816 General Scripts Area
1BCB0..1CFFF4,944 General Scripts Area
1D250..1D2FF176 Symbols Area
1D380..1D3FF128 Symbols Area
1D800..1E7FF4,096 Symbols Area
1E8E0..1EBFF800 General Scripts Area - Right to Left
1EC00..1EDFF512 Symbols Area - Right to Left
1EF00..1EFFF256 Symbols Area - Right to Left
1F900..1FFFD1,790 Symbols Area

Empty Columns in Assigned Blocks

08C0..08DF32 [Arabic Extended-A]
0E60..0E7F32 [Thai]
0EE0..0EFF32 [Lao]
0FE0..0FFF32 [Tibetan]
1AC0..1AFF64 [Combining Diacritical Marks Extended]
20C0..20CF16 [Currency Symbols]
2430..243F16 [Control Pictures]
2450..245F16 [Optical Character Recognition]
2BE0..2BFF32 [Miscellaneous Symbols And Arrows]
2E50..2E7F48 [Supplemental Punctuation]
9FD0..9FFF48 [CJK Unified Ideographs]
A630..A63F16 [Vai]
A7C0..A7EF48 [Latin Extended-D]
FAE0..FAFF32 [CJK Compatibility Ideographs]
FD40..FD4F16 [Arabic Presentation Forms-A]
10060..1007F32 [Linear B Syllabary]
101B0..101CF32 [Ancient Symbols]
10770..1077F16 [Linear A]
109C0..109FF64 [Meroitic Cursive]
11240..1124F16 [Khojki]
115D0..115FF48 [Siddham]
123A0..123FF96 [Cuneiform]
1B010..1B0FF240 [Kana Supplement]
1D1E0..1D1FF32 [Musical Symbols]
1EEC0..1EEEF48 [Arabic Mathematical Alphabetic Symbols]
1F1A0..1F1DF64 [Enclosed Alphanumeric Supplement]
1F260..1F2FF160 [Enclosed Ideographic Supplement]
1F6D0..1F6DF16 [Transport And Map Symbols]
1F7E0..1F7FF32 [Geometric Shapes Extended]
1F8B0..1F8FF80 [Supplemental Arrows-C]