I'm pretty sure that it is a thing. It's a result of some fraudulent companies switching service on people that didn't want to or agree to it. There are also some identity thieves out there that will port your number if they can, so that they can get around the dual authentication thing that sends you a text when someone tries to access your bank account.I've never heard of an account lock that would prevent a number port. Then again, I've only dealt with the Big 4.