How To
To add phone numbers you can either
Navigate to the Numbers page and click Add Numbers
In multiple steps in the Account Setup Guide section
In the first step add all the numbers in the input field separated by commas.
In step 2 the application will validate the phone numbers and if everything is correct you can click the next step.
You do not have to set the location here. The location dropdown is only used for manual imports for numbers not being assigned to anything.
Click Bulk Import to complete the process.