📴 Mobile phone off UTF-8 character with hex code 1F4F4

Using HEX code of Mobile phone off in HTML file

<span> &#x1F4F4; </span>

Using Decimal code of Mobile phone off in HTML file

<span> &#128244; </span>

Using HEX code of Mobile phone off in CSS file for content

span { 
    content: '\1f4f4';
}