- Go to the Settings dropdown menu in the top right and type SMS numbers in the input box.
- Click the SMS numbers option.

- On the SMS Numbers page, click the Add a number button.
- Enter an area code from which your number will be generated. You should enter an area code that would make sense for your project and potential message recipients.

- Select the user to whom you want to assign the number in the user field.
- Choose a phone number from the options in the Available Phone Numbers dropdown menu.

- Click Provision.