Source: Noto Emoji

U+1F1EF Regional Indicator Symbol Letter J

U+1F1EF was added in Unicode version 6.0 in 2010. It belongs to the block U+1F100 to U+1F1FF Enclosed Alphanumeric Supplement in the U+10000 to U+1FFFF Supplementary Multilingual Plane.

This character is a Other Symbol and is commonly used, that is, in no specific script.

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. If it is followed by another Regional Indicator character, they form a non-breaking pair. U+1F1EF prohibits a line break in pairs of continuous regional indicator characters.

This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Variation Selector-15: 🇯︎ See the Emojipedia for more details on this character’s emoji properties.

The Wikipedia has the following information about this codepoint:

The regional indicator symbols are a set of 26 alphabetic Unicode characters (A–Z) intended to be used to encode ISO 3166-1 alpha-2 two-letter country codes in a way that allows optional special treatment.
These were defined by October 2010 as part of the Unicode 6.0 support for emoji, as an alternative to encoding separate characters for each country flag. Although they can be displayed as Roman letters, it is intended that implementations may choose to display them in other ways, such as by using national flags. The Unicode FAQ indicates that this mechanism should be used and that symbols for national flags will not be directly encoded.
They are encoded in the range U+1F1E6 🇦 REGIONAL INDICATOR SYMBOL LETTER A to U+1F1FF 🇿 REGIONAL INDICATOR SYMBOL LETTER Z within the Enclosed Alphanumeric Supplement block in the Supplementary Multilingual Plane.

Representations

System	Representation
Nº	127471
UTF-8	F0 9F 87 AF
UTF-16	D8 3C DD EF
UTF-32	00 01 F1 EF
URL-Quoted	%F0%9F%87%AF
HTML hex reference	🇯
Wrong windows-1252 Mojibake	ðŸ‡¯
Encoding: GB18030 (hex bytes)	94 39 94 35

Elsewhere

Complete Record

Property	Value
Age (age)	6.0 (2010)
Unicode Name (na)	REGIONAL INDICATOR SYMBOL LETTER J
Unicode 1 Name (na1)	—
Block (blk)	Enclosed Alphanumeric Supplement
General Category (gc)	Other Symbol
Script (sc)	Common
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	none
Decomposition Mapping (dm)	Regional Indicator Symbol Letter J
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Regional Indicator Symbol Letter J
Lowercase Mapping (lc)	Regional Indicator Symbol Letter J
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Regional Indicator Symbol Letter J
Uppercase Mapping (uc)	Regional Indicator Symbol Letter J
Simple Titlecase Mapping (stc)	Regional Indicator Symbol Letter J
Titlecase Mapping (tc)	Regional Indicator Symbol Letter J
Case Folding (cf)	Regional Indicator Symbol Letter J
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)	Regional Indicator Symbol Letter J
Grapheme Cluster Break (GCB)	Regional Indicator
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)	✘
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Modifier Combining Mark (MCM)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Regional Indicator Symbol Letter J
NFKC Quick Check (NFKC_QC)	Yes
NFKC_SCF (NFKC_SCF)	Regional Indicator Symbol Letter J
NFKD Quick Check (NFKD_QC)	Yes
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)	Regional Indicator
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 Paired Bracket (bpb)	Regional Indicator Symbol Letter J
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)	Regional Indicator
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Regional Indicator Symbol Letter J
Script Extension (scx)
Vertical Orientation (vo)	U