How to Make a Click-to-Call Link (tel: and sms:) for a Phone Number

A click-to-call link is an HTML link whose address starts with tel: followed by the number in international format, such as tel:+14155552671; tapping it on a phone opens the dialler. The click-to-call link generator writes the tel: link, an sms: link with an optional message and the HTML snippet for a website or email signature.

The text inside the link can be anything; the number in the href is what gets dialled.

The by-hand way

1. Write the number in E.164 form: a +, the country code and no spaces. See E.164 phone number format.
2. Wrap it: <a href="tel:+14155552671">(415) 555-2671</a>.
3. For a text link, use sms:+14155552671?body=Hi%2C%20I%27d%20like%20a%20quote, with the message percent-encoded.
4. In a spreadsheet, use =HYPERLINK("tel:+14155552671","Call").

Extensions go after the number as ;ext=204, though phones and calling apps differ in whether they dial them.

Step 1: enter the number

Type it in any format and pick the country for numbers written without a + code.

Step 2: choose Call or Text

For a text link, type the message to pre-fill. The tool encodes it and shows how many SMS segments it will take.

Step 3: copy the link or HTML

Optionally set the link text, then press Make the link. In an HTML signature paste the snippet; in Gmail and Outlook, add a link on the number in the signature editor and paste the tel: link as the address.

For many numbers at once, the list mode builds tel: and sms: links for a whole column. For SMS links from a list specifically, see how to make SMS links for a list of phone numbers.

What this check cannot do

• It checks the number fits its country's numbering plan; it cannot tell you the line is in service or can receive texts.
• sms: links only work where the device has a messaging app, which most desktops do not.
• The visitor's phone decides what happens, so test each link on the devices your audience uses.

For WhatsApp instead of SMS, use the WhatsApp link generator.

Next: check the emails you publish alongside

If your contact page or signature also collects email, run the addresses behind it through the verify page: the first 100 email checks are free with a Google sign-in, no card. See pricing for larger lists.

Try it now

Open the click-to-call link generator.