IReadOnlyList<string> networkAccIds = Windows.Networking.NetworkOperators.MobileBroadbandAccount.AvailableNetworkAccountIds;
string myNetworkAccountId = networkAccIds[0];
            //var myNetworkAccountId = "{95499FEF-1579-4547-A0BE-FF271ADBBE76}";MobileBroadbandAccount accout = MobileBroadbandAccount.CreateFromNetworkAccountId(myNetworkAccountId);
var info=  accout.CurrentDeviceInformation;
            var IMEI= info.MobileEquipmentId;
            var IMSI = info.SubscriberId;