Mapping of Unicode Characters - Planes

All available codepoints are located on 17 Planes, each plane corresponding with the value of the hexadecimal digits (0–9, A–F) preceding the four final ones: hence U+24321 is in Plane 2, U+4321 is in Plane 0 (implicitly read U+04321), and U+10A200 would be in Plane 16 (for Hex 10=decimal 16). Within one plane, the range of code points is hexadecimal 0000–FFFF, yielding a maximum of 65,536 code points. Some planes restrict code points to a subset of that range.

Unicode planes and code point ranges
Basic Supplementary
Plane 0:
Basic Multilingual Plane		 Plane 1:
Supplementary Multilingual Plane		 Plane 2:
Supplementary Ideographic Plane		 Planes 3–13:
Unassigned		 Plane 14:
Supplement­ary Special-purpose Plane		 Planes 15–16:
Supplement­ary Private Use Area
0000–​FFFF 10000–​1FFFF 20000–​2FFFF 30000–​DFFFF E0000–​EFFFF F0000–​10FFFF
BMP SMP SIP — SSP S PUA A/B

0000–​0FFF
1000–​1FFF
2000–​2FFF
3000–​3FFF
4000–​4FFF
5000–​5FFF
6000–​6FFF
7000–​7FFF

8000–​8FFF
9000–​9FFF
A000–​AFFF
B000–​BFFF
C000–​CFFF
D000–​DFFF
E000–​EFFF
F000–​FFFF

10000–​10FFF
11000–​11FFF
12000–​12FFF
13000–​13FFF


16000–​16FFF




1B000–​1BFFF

1D000–​1DFFF
1E000–​1EFFF
1F000–​1FFFF

20000–​20FFF
21000–​21FFF
22000–​22FFF
23000–​23FFF
24000–​24FFF
25000–​25FFF
26000–​26FFF
27000–​27FFF

28000–​28FFF
29000–​29FFF
2A000–​2AFFF
2B000–​2BFFF



2F000–​2FFFF

E0000–​E0FFF

15: PUA-A
F0000–​FFFFF

16: PUA-B
100000–​10FFFF

Read more about this topic:  Mapping Of Unicode Characters

Famous quotes containing the word planes:

    “After the planes unloaded, we fell down
    Buried together, unmarried men and women;”
    —Robert Lowell (1917–1977)