U+FDD9 is not a valid Unicode code point / character.
It belongs to the "Arabic Presentation Forms-A" block which goes from 0xFB50 to 0xFDFF but is not defined in the Unicode 15.0 database of code points.
This code point first appeared in version of the Unicode® Standard and belongs to the "Arabic Presentation Forms-A" block which goes from 0xFB50 to 0xFDFF.
You can safely add this character in your html code with the entity: 
You can use the u+FDD9 copy pc button below.
Easy u+FDD9 copy paste:
Unicode meta-data
The following table show specific meta-data that is known about this character.
field | value |
---|---|
Codepoint (hex) | FDD9, uFDD9 |
Legacy name (Unicode 1.0) | - |
Official name (Unicode 15.0) | - |
resolved name | |
block | Arabic Presentation Forms-A (Arabic_PF_A) |
common typos | u+DFD9, u+DFD9 |
There are alternative spelling that can be found in the wild for the unicode character FDD9 like u FDD9, (u+FDD9) or u +FDD9. You can also find u-FDD9, u*FDD9, un+FDD9, uFDD9, u=FDD9 or c+FDD9. You can also spell it with u FDD9 unicode, u plus FDD9, uncode FDD9 or unicode + FDD9.
Glyphs and symbols in your browser
The following unicode chart presents different versions of the glyph corresponding to the unicode characters u+FDD9 that are available on your computer.
In order to type this character easily, you may want to download and install a unicode Arabic Presentation Forms-A keyboard.
A sample of fonts are used below to display whether the character has a glyph in this font or not.
Encodings (Unicode characters converter)
The following character table converter for +uFDD9 allows you to see the value of the character in different encodings
encoding | hexadecimal | decimal | binary |
---|---|---|---|
UTF-8 | EF B7 99 | 15710105 | 11101111 10110111 10011001 |
UCS2 | D9 FD | 55805 | 11011001 11111101 |
UTF-16LE | D9 FD | 55805 | 11011001 11111101 |
UTF-16BE | FD D9 | 64985 | 11111101 11011001 |
UTF7 | 2B 2F 64 6B 2D | 185478703917 | 00101011 00101111 01100100 01101011 00101101 |
UTF7-IMAP | 26 2C 64 6B 2D | 163953535789 | 00100110 00101100 01100100 01101011 00101101 |