How Do You Set Up Host SMS on Your Existing Number?

Follow these steps to turn on SMS for a number you already own. The process has two steps: verify that you own the number, then provide your business details and sign a Letter of Authorization (LOA).

Before you start, read the Host SMS conditions.

Before you begin

• Have access to the phone number so you can answer a verification call.

• Know the name of the person authorized to sign for the number, and the service address on file.

• Make sure the signing email inbox is monitored.

Add and verify your number

1

Go to Telephony → Host SMS and click + Host SMS. The Host SMS on Existing Number panel opens on 1. Add & Verify Number.

2

Choose the Phone Number.

3

Under Verify ownership, click Request Call OTP. You'll receive a call on the number with a 6-digit code.

4

Enter the code in 6-digit code and click Confirm. If the code didn't arrive, click Request New Code.

5

When you see Number ownership verified, click Continue.

Business Information & Authorization

Subscriber Information

Service Address

Enter the service address of the number: Address Line 1, Address Line 2 (optional, for suite or floor), City, Postal/ZIP Code, State/Province/Region, and Country. The address must be in the US or Canada.

Sign LOA

1. Click Download LOA Template if you need a copy of the template.

2. Review the LOA Document.pdf. The signee must have authority over the use of the number.

3. Click Submit.

After you submit

You'll see Thanks for submitting your request! Click Done.

Your current provider will send a confirmation email. Keep an eye on your inbox, including your spam or junk folder, and confirm the request.

The number then moves through Order Received and Processing to Complete. Track it with the eye icon on the Host SMS tab. Once complete, link the number to an approved A2P campaign if you're in the USA.

Frequently Asked Questions