In most areas of ArbiterOne the first five numbers of an official's SSN will be masked. In order to unmask the the first 5 the following steps can be taken.
First, go the officials page under users
Second, click on the Roster link under Reports on the left side of the screen.
Third, Select Merge Style under the Page Format
Then, make sure SSN is selected and any other fields that you would like to include.
Note: If the SSN box doesn't show up - Support will need to edit the group for the assigner
Finally, Click on the Print Preview button and an excel file will be downloaded with a list of your officials and their full SSN as long as the official has entered the information on his or hers profile.