E5397 Cmd Rej: Cannot delete last route to DPC referenced in PCT table
The last route to a destination point code that exists in the PCT table cannot be deleted until the Filter Point Code or the Real Point Code is deleted from the table.
Recovery
Display the routes in the PCT table. Enter the rtrv-pct command.
Delete the associated Filter Point Codes and Real Point Codes as necessary. Refer to the Database Administration - SS7 User's Guide for assistance.
Re-enter the dlt-rte command that generated this error message.