Register a callsign exception for future inclusion in the country database. Callsign exceptions are used to override a prefix or zone assigned by DX4WIN. For example when you know that ZK1AA is North Cook Isl, you can override the prefix with a callsign exception.

Please make sure you only enter callsigns that you are 100% sure about, and check the previous entries before sending in a new one.

Set the zone to 0 (zero) for the default CQ zone; date is in mm/dd/yy format