You can port an active number away from NumberBarn or NumberGarage regardless of the plan you're on: Port Away, Park, Forward, Unlimited, or Business.
If you purchase a number on the Port Away plan and do not port it away within 30 days, it will automatically switch to the Park plan. There is no way to switch your number back to the Port Away plan, but the plan for a number does not in any way dictate the ability to port away. Porting away is available with all plans! And it's important to note that the NumberBarn Port Away and Park plans are the same price per month, $2.
You do not need to make any changes to your active number if you want to port it away.
To learn more about porting away, see our guide here.