Switching to suretyDIY with a Concord 4

Hi,

My radio module name is C183-VZ. Will this work?

That would appear to be a 3G alarm.com compatible radio for the concord. A Cellular module can only be linked to one Alarm.com account at a time. To obtain new service an unregistered 3G Alarm.com compatible module is required. Once your cellular module is unregistered you will want to verify through the Module Check Tool with the cell module number to determine that the module is unregistered and ready for use.