how to add a phone call number in html code example

Example 1: html make phone number callable

Area code with dashes, 1 and + sign

<a href="tel:+1-555-555-1212">555-555-1212</a>
Area code with no dashes, 1 and + sign

<a href="tel:+15555551212">555-555-1212</a>

Example 2: phone number button on website

<a href="tel:5554280940">Call us at 555-428-0940</a>