You need to know which job INITed an area in a specific database and the date/time that DBUTLTY INIT job got executed.
A DBUTLTY TYPE=H - Utility Function History Report - provides this information.
Run DBUTLTY REPORT DBID=nnnnn,TYPE=H.
This function executes through the Datacom Multi-User and, therefore, the MUF must be enabled.
All tables must be loaded with a valid index because each area is opened with read status.
If you are running Datacom version 14.0 then make sure to have applied RO57269.