Addressed To Subject (℁) is the Letterlike Symbols character at Unicode U+2101. It is a typographic abbreviation used in formal correspondence for “addressed to the subject.” You can paste ℁ in UTF-8 HTML, or write it with a numeric character reference when you need an explicit entity form.
Remember
Character ℁
Unicode U+2101
Hex entity ℁
Decimal ℁
CSS escape \2101
Named entity (none)
All of these produce the same glyph: ℁. Prefer the character or a numeric entity in body text; use the CSS escape for generated content on pseudo-elements. Do not confuse it with neighboring Account Of (℀).
Reference
Quick Reference
One table for every form you will actually use.
Form
Code
Where it goes
Direct character
℁
HTML text (UTF-8)
Hex entity
℁
HTML markup
Decimal entity
℁
HTML markup
CSS escape
\2101
Stylesheet content
Named entity
—
Not defined in HTML5
When to Use Which
Situation
Use
UTF-8 page, glyph available in your editor
Paste ℁
Need an entity in HTML source
℁ or ℁
Generated text via ::before / ::after
content: "\2101"
Looking for a named entity
Does not exist — use numeric form
Maximum clarity for readers / a11y
Spell out “addressed to the subject”
See it
Live Preview
Addressed To Subject rendered in common document contexts.
Inline textMemo ℁ the board of directors.
Large glyph℁
Formal lineCorrespondence ℁ the applicant…
MonospaceREF: DOC-℁-2026-001
With entitiesHex: ℁ | Decimal: ℁
Code
Complete HTML Example
One page that shows Addressed To Subject with the hex entity, decimal entity, CSS escape, and a typed character. Use View Output or open the live editor.
Hex + Decimal + CSS + Typed
All four ways to produce ℁ in a single document.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Addressed To Subject (℁) in HTML</title>
<style>
#point::after {
content: "\2101";
}
</style>
</head>
<body>
<p>Addressed To Subject using Hex Code: ℁</p>
<p>Addressed To Subject using HTML Code: ℁</p>
<p id="point">Addressed To Subject using CSS Entity: </p>
<p>Typed directly: ℁</p>
</body>
</html>
Addressed To Subject using Hex Code: ℁
Addressed To Subject using HTML Code: ℁
Addressed To Subject using CSS Entity: ℁
Typed directly: ℁
How It Works
1. Hex:U+2101 → ℁ in HTML. The browser turns it into ℁.
2. Decimal: same code point as 8449 → ℁. Same result as hex.
3. CSS: use \2101 in content (not an HTML entity). #point::after appends that ℁ after the paragraph text.
4. Typed ℁: fine in UTF-8 source. All four lines show the same glyph.
Pitfalls & Tips
Common mistakes when working with the Addressed To Subject entity.
Named?
No named entity
HTML5 does not define a named entity for this letterlike symbol. Use numeric forms.
CSS vs HTML
Do not mix escapes
\2101 belongs in CSS. ℁ / ℁ belong in HTML.
Neighbors
Not Account Of
℀ is Account Of. ℁ is Addressed To Subject — different meanings.
Fonts
Check Letterlike coverage
Some webfonts omit U+2101. Test your real body font or rely on system fallbacks.
Meaning
Add context
Write phrases like “Memo ℁ …” so readers and assistive tech understand the abbreviation.
Semicolon
End references
Always finish with ; — write ℁, not ℁.
Compatibility
Browser Support
Addressed To Subject (U+2101) and its numeric entity forms (℁, ℁, CSS \\2101) are supported in all mainstream browsers. Glyph appearance depends on font coverage for the Letterlike Symbols block.
✓ Universal support
Addressed To Subject (℁)
Paste ℁, or encode with hex, decimal, or CSS escape — same character everywhere encoding is supported.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+2101 / entitiesFull support
Bottom line: Use a typed ℁ in UTF-8 text when convenient. Prefer ℁ or ℁ in HTML when encoding must be explicit, and \\2101 only inside CSS content.
Remember
Key Takeaways
Unicode: Addressed To Subject is U+2101 (decimal 8449).
HTML: use ℁ or ℁ when you need an entity.
CSS: use \2101 inside content for generated text.
Meaning: ℁ ≠ ℀ (Account Of) — neighboring but different symbols.
One line:U+2101 → paste ℁, or encode as ℁ / ℁ / CSS \2101.
Frequently Asked Questions
Use ℁ (hex), ℁ (decimal), or the CSS escape \2101 in the content property. All render Addressed To Subject (℁). You can also paste ℁ directly if your file is UTF-8.
U+2101 (hex 2101, decimal 8449). Unicode names it “Addressed to the subject.” It belongs to the Letterlike Symbols block.
No. HTML5 does not define a named entity such as &addressedto;. Use numeric references like ℁ or ℁ when you need an entity form.
In formal correspondence, letterheads, and typography that use the conventional ℁ abbreviation. Prefer spelling out “addressed to the subject” when clarity for readers or screen readers matters more than compact typography.
HTML entities (℁ or ℁) go in markup. The CSS escape \2101 is used in stylesheets (usually in the content property of ::before/::after). Both render ℁.
Addressed To Subject is U+2101 (℁). Account Of is U+2100 (℀). They are neighboring letterlike abbreviations with different meanings — do not substitute one for the other.
🤔
Did you know?
Addressed To Subject is Unicode U+2101 (decimal 8449) in the Letterlike Symbols block. HTML5 has no named entity for it — use ℁ or ℁ when you need an entity form.
