Bad advice for porting?

[chevyman]

If you want to port any number you have to make sure the number your porting is NOT the billing number for the other services, unless you want them turned off. when you port a number and it doesn't matter what company it is, all services tired to that number will be cut off. If you had a DSL line on that number and had a second number, you can port the second number without effecting the main number, which should be the number your billing is tied to. Like if you had a cell family plan you can port the other numbers that isn't the billing number without cancelling the others.

[Zion21]

If you want to port any number you have to make sure the number your porting is NOT the billing number for the other services, unless you want them turned off. when you port a number and it doesn't matter what company it is, all services tired to that number will be cut off. If you had a DSL line on that number and had a second number, you can port the second number without effecting the main number, which should be the number your billing is tied to. Like if you had a cell family plan you can port the other numbers that isn't the billing number without cancelling the others.

That makes a lot of sense actually but surely there must be a way to switch billing numbers, and then be able to port it.