That's not how cellular networks work. Your IMEI will never be send in clear over the network. Not even back in old 2G networks. If the gov needs your data th

That's not how cellular networks work. Your IMEI will never be send in clear over the network. Not even back in old 2G networks. If the gov needs your data they can use standardized lawful interception interfaces. This interface offers all juicy data - not only voice, SMS and your phone number.