What is Phone Number 261205542119?

Who are they is Phone Number 261205542119.
– Who is the owner of the phone number.. Why do they call me constantly at 2021-11-20 18:27:21

Can someone tell me what to do with 261205542119 ?

Thank you very much
Recent, Discussion at 2021-11-20 18:27:21 by community : How to block spam calls on iPhone