Verizon to Ting

Hi All,

So I've moved over to "Ting" from Verizon and I paid off my Galaxy Note3.

Is there a way to root this device and get rid of all verizon notifications etc, my phone works fine, but I get the verizon start notification and notification that my sim is not verizon etc, obviously I will not be able to get any OS updates too from verizon or TING, How can I install a custom ROM still be able to use the TING service, which is I believe a sister company of T mobile.

Thanks.

Samsung Galaxy SM900V
Andriod Ver 5.0
Baseband N900VVRUEOB6

BUILD NUMBER RUEOB6