This number kept calling me several times daily without any purpose! It's so annoying!!! Is there any way I could block this number? Please let me know...

This is probably a fishing call.
If you pick up then your probably call soon by a telesales agent. correct?
This number random dials to see if the line has activity then it calls back to a sales depot, where they try and sell you Banking/ Credit Cards,  Cell phone rentals,  Botswana, that kind of think.
Dest solution if you see it dont pick up again.

Whomever this is, they have called three times in two days and hang up before or just AS I pick up. Am not impressed.  Agree - this is harassment.

2 calls yesterday, 3 today.  This is harrassment.  No idea who it is.

Received 2x this number this morning - no message left - u/k reason why they are calling.

Hangs up every time I answer.