Who called from 2403181453

Called but left no message.

Called but didn't say anything when I picked up.

Did not say anything when I answered

Received two calls from this number so far.  We did not answer the phone.

This is the fifth call from this company??  Our rule is for all callers which we do not know or identify, they are ignored and not answered at all. The number is then entered into the block list.