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 5.1.0.

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 5.1.0.

SUMMARY
	Reserved			Designated
	Not in Blocks	in Empty Columns	in Partial Columns
Code Points	1,664	704	1,288	61,880
Columns	104	44	n/a	3,948

 

SMP SUMMARY
	Reserved			Designated
	Not in Blocks	in Empty Columns	in Partial Columns
Code Points	61,168	256	256	3,856
Columns	3,823	16	n/a	257

The following lists the code points in empty columns in more detail. It is separated into two parts: empty columns in unassigned blocks (or areas), and empty columns in assigned blocks. The (xx) are the number of code points in empty columns in that block or area.

Reserved Ranges Not in Blocks

0800..08FF	256		General Scripts Area - Right to Left
18B0..18FF	80		General Scripts Area
1A20..1AFF	224		General Scripts Area
1BC0..1BFF	64		General Scripts Area
1C80..1CFF	128		General Scripts Area
2FE0..2FEF	16		Symbols Area
A4D0..A4FF	48		General Scripts Area
A6A0..A6FF	96		General Scripts Area
A830..A83F	16		General Scripts Area
A8E0..A8FF	32		General Scripts Area
A960..A9FF	160		General Scripts Area
AA60..ABFF	416		General Scripts Area
D7B0..D7FF	80		General Scripts Area
10200..1027F	128		General Scripts Area
102E0..102FF	16		General Scripts Area
10350..1037F	48		General Scripts Area
103E0..103FF	16		General Scripts Area
104B0..107FF	848		General Scripts Area
10840..108FF	192		General Scripts Area - Right to Left
10940..109FF	192		General Scripts Area - Right to Left
10A60..10FFF	1,440		General Scripts Area - Right to Left
11000..11FFF	4,096		General Scripts Area
12480..1CFFF	43,904		General Scripts Area
1D250..1D2FF	176		Symbols Area
1D800..1EFFF	6,144		Symbols Area
1F0A0..1FFFD	3,934		Symbols Area

Empty Columns in Assigned Blocks

0DE0..0DEF	16		[Sinhala]
0E60..0E7F	32		[Thai]
0EE0..0EFF	32		[Lao]
0FD0..0FFF	48		[Tibetan]
20C0..20CF	16		[Currency Symbols]
23F0..23FF	16		[Miscellaneous Technical]
2430..243F	16		[Control Pictures]
2450..245F	16		[Optical Character Recognition]
26D0..26FF	48		[Miscellaneous Symbols]
2B60..2BFF	160		[Miscellaneous Symbols and Arrows]
2D70..2D7F	16		[Tifinagh]
2E40..2E7F	64		[Supplemental Punctuation]
9FD0..9FFF	48		[CJK Unified Ideographs]
A630..A63F	16		[Vai]
A790..A7EF	96		[Latin Extended-D]
FAE0..FAFF	32		[CJK Compatibility Ideographs]
FBC0..FBCF	16		[Arabic Presentation Forms-A]
FD40..FD4F	16		[Arabic Presentation Forms-A]
10060..1007F	32		[Linear B Syllabary]
101A0..101CF	48		[Ancient Symbols]
12370..123FF	144		[Cuneiform]
1D1E0..1D1FF	32		[Musical Symbols]

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