A:Answer I have the Edge's brother - the S7 - which I have used with Tracfone for over a year. My particular S7 was unlocked, and ex-Verizon; however, I have used the T-Mobile towers (and micro-SIM) since I moved it to Tracfone (the number I ported was from Safelink Wireless - Tracfone's Universal Lifeline arm). I am looking to move to another phone (the Pixel 3a XL) - however, because this phone uses a nano-SIM, I'll be porting the number to the new size SIM, so I'll be buying another triple-punch SIM kit for that reason (and that reason only.. I'll be sticking with the same towers I've been using (T-Mobile) - my only change is the SIM size, therefore, the porting steps will be identical otherwise. The ONLY precaution I would use are making sure that you use a landline to call in to do the porting (the number to call is included with the SIM kit) and write down the info that will be asked for ahead of time (that info is spelled out with the kit also). Also, you can use Google to look up (and print - if needed) the info that you will need..