That input mask was set to save the hyphens so future inputs will have hyphens, however, existing values don't actually have hyphens. Data will be inconsistent.
Now have to run UPDATE query to set value of SimStatus.
Don't have database with me now and can't remember if the spreadsheet had duplicate sim numbers. If there are duplicates in ASE_Units table do a 'SELECT DISTINCT SimNumber FROM ASE_Units;' query. Then can just copy/paste that entire column over to the Sim_Serial table.