Hello Missreddgirl, to give you more info, just like MEGEDH mentioned, from a technical standpoint the device will work just fine. The line will continue to have normal functionality. From a policy perspective, we do not support an unsolicited sim swap, which is what this would be considered. What that entails, you will not be able to make any changes on that specific line. For example, switching from by the gig to an unlimited data plan. If you have any further questions, please feel free to reach out here or in a private message by clicking on my name "ComcastTito" and then clicking "send message".