After you file

My question is:

As the executor of the estate, its my understanding that I must file a  non-closing 1041 Fiduciary by April 18th 2023 (unless I go down the path of using the calendar year option - not at the moment).  I do NOT have the SSAN of one of the beneficiaries.  Do I / can I file a non-closing 1041 Fiduciary on April 18th 2023 without listed beneficiaries?