Source: Noto Sans

U+D800 Surrogate Code Point

U+D800 was added in Unicode version 1.1 in 1993. It belongs to the block U+D800 to U+DB7F High Surrogates in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Surrogate and has no script assigned.

The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+D800 should never appear in texts that need line break handling.

Representations

System	Representation
Nº	55296
UTF-8
UTF-16	D8 00
UTF-32	00 00 D8 00
URL-Quoted	%
HTML hex reference	&#xD800;
Wrong windows-1252 Mojibake	ï¿½

Elsewhere

Complete Record

Property	Value
Age (age)	1.1 (1993)
Unicode Name (na)	—
Unicode 1 Name (na1)	—
General Category (gc)	Surrogate
Script (sc)	Unknown
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	none
Decomposition Mapping (dm)	Surrogate Code Point
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Surrogate Code Point
Lowercase Mapping (lc)	Surrogate Code Point
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Surrogate Code Point
Uppercase Mapping (uc)	Surrogate Code Point
Simple Titlecase Mapping (stc)	Surrogate Code Point
Titlecase Mapping (tc)	Surrogate Code Point
Case Folding (cf)	Surrogate Code Point
ASCII Hex Digit (AHex)	✘
Alphabetic (Alpha)	✘
Bidi Control (Bidi_C)	✘
Bidi Mirrored (Bidi_M)	✘
Composition Exclusion (CE)	✘
Case Ignorable (CI)	✘
Changes When Casefolded (CWCF)	✘
Changes When Casemapped (CWCM)	✘
Changes When NFKC Casefolded (CWKCF)	✘
Changes When Lowercased (CWL)	✘
Changes When Titlecased (CWT)	✘
Changes When Uppercased (CWU)	✘
Cased (Cased)	✘
Full Composition Exclusion (Comp_Ex)	✘
Default Ignorable Code Point (DI)	✘
Dash (Dash)	✘
Deprecated (Dep)	✘
Diacritic (Dia)	✘
Emoji Modifier Base (EBase)	✘
Emoji Component (EComp)	✘
Emoji Modifier (EMod)	✘
Emoji Presentation (EPres)	✘
Emoji (Emoji)	✘
Extender (Ext)	✘
Extended Pictographic (ExtPict)	✘
FC NFKC Closure (FC_NFKC)	—
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✘
Grapheme Extend (Gr_Ext)	✘
Grapheme Link (Gr_Link)	✘
Hex Digit (Hex)	✘
Hyphen (Hyphen)	✘
ID Continue (IDC)	✘
ID Start (IDS)	✘
IDS Binary Operator (IDSB)	✘
IDS Trinary Operator and (IDST)	✘
Ideographic (Ideo)	✘
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	1
NFD Quick Check (NFD_QC)	1
NFKC Casefold (NFKC_CF)	Surrogate Code Point
NFKC Quick Check (NFKC_QC)	1
NFKD Quick Check (NFKD_QC)	1
Other Alphabetic (OAlpha)	✘
Other Default Ignorable Code Point (ODI)	✘
Other Grapheme Extend (OGr_Ext)	✘
Other ID Continue (OIDC)	✘
Other ID Start (OIDS)	✘
Other Lowercase (OLower)	✘
Other Math (OMath)	✘
Other Uppercase (OUpper)	✘
Prepended Concatenation Mark (PCM)	✘
Pattern Syntax (Pat_Syn)	✘
Pattern White Space (Pat_WS)	✘
Quotation Mark (QMark)	✘
Regional Indicator (RI)	✘
Radical (Radical)	✘
Sentence Break (SB)	Other
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Other
White Space (WSpace)	✘
XID Continue (XIDC)	✘
XID Start (XIDS)	✘
Expands On NFC (XO_NFC)	✘
Expands On NFD (XO_NFD)	✘
Expands On NFKC (XO_NFKC)	✘
Expands On NFKD (XO_NFKD)	✘
Bidi Mirrored Glyph (bmg)	—
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	neutral
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Surrogate
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Surrogate Code Point
Script Extension (scx)	Unknown
Vertical Orientation (vo)	R