Adding a new line with a device promo and cancelling an old line

latenight71vz

I'm looking to add a new line with a promotion but at the same time I want to cancel an old line I no longer use. Can I do this at the same time without impacting the promotion?

The old device has no payments due and is not under any contract. I also do not need this number ported anywhere.

Thanks for the clarification

SynthpopAddict

Maybe I'm just being a little paranoid, but if it were me, I'd disconnect the line which you don't want anymore first, then sign up for the new line under the promotion later. Otherwise, there's a chance that the promotion will be put onto the old line which might not qualify and will mess both things up.

Information about disconnecting mobile service is in the link below:

https://www.verizon.com/support/disconnect-cancel-mobile/