What is the cost to port out a number?

In this article:

You may be wondering if there is a cost to port your number out after purchasing or porting it in. NumberBarn does not charge any fee to port a number away to another provider, though your new carrier may elect to charge you a fee. As long as your account is in good standing, you should have no problem porting your number away.

Just be sure you have the correct port away information. Check out this article:

Find my port away information including account number and PIN

Once your number has fully ported out of the Barn or the Garage, we stop all billing. There are no further charges for your number after it leaves your account.