Unicode Character 'INTERLINEAR ANNOTATION ANCHOR' (U+FFF9)

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Do not use this character in domain names. Browsers are blacklisting it because of the potential for phishing.
Unicode Data
Name INTERLINEAR ANNOTATION ANCHOR
Block Specials
Category Other, Format [Cf]
Combine 0
BIDI Other Neutrals [ON]
Mirror N
Index entries Interlinear Annotation
ANCHOR, INTERLINEAR ANNOTATION
INTERLINEAR ANNOTATION ANCHOR
ANNOTATION ANCHOR, INTERLINEAR
Annotation, Interlinear
Comments marks start of annotated text
Version Unicode 3.0.0 (September, 1999)
Encodings
HTML Entity (decimal) 
HTML Entity (hex) 
How to type in Microsoft Windows Alt +FFF9
UTF-8 (hex) 0xEF 0xBF 0xB9 (efbfb9)
UTF-8 (binary) 11101111:10111111:10111001
UTF-16 (hex) 0xFFF9 (fff9)
UTF-16 (decimal) 65,529
UTF-32 (hex) 0x0000FFF9 (fff9)
UTF-32 (decimal) 65,529
C/C++/Java source code "\uFFF9"
Python source code u"\uFFF9"
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Java Data
string.toUpperCase()
string.toLowerCase()
Character.UnicodeBlock SPECIALS
Character.charCount() 1
Character.getDirectionality() DIRECTIONALITY_OTHER_NEUTRALS [13]
Character.getNumericValue() -1
Character.getType() 16
Character.isDefined() Yes
Character.isDigit() No
Character.isIdentifierIgnorable() Yes
Character.isISOControl() No
Character.isJavaIdentifierPart() Yes
Character.isJavaIdentifierStart() No
Character.isLetter() No
Character.isLetterOrDigit() No
Character.isLowerCase() No
Character.isMirrored() No
Character.isSpaceChar() No
Character.isSupplementaryCodePoint() No
Character.isTitleCase() No
Character.isUnicodeIdentifierPart() Yes
Character.isUnicodeIdentifierStart() No
Character.isUpperCase() No
Character.isValidCodePoint() Yes
Character.isWhitespace() No