SmsMessage sms = new SmsMessage(); sms.Body = “Write your text here .”; sms.To.Add( new Recipient( “”, “123123123” ) ); sms.To.Add( new Recipient( “”, “123123121” ) ); sms.To.Add( new Recipient( “”, “123123123” ) ); sms.To.Add( new Recipient( “”, “123123123” ) ); sms.To.Add( new Recipient( “”, “123132123” ) ); Msg.Send(); I think you can also try that way Hope it will help you