Who called from 2486949935

Daily calls for the last few weeks, no reply if I answer, never leaves a message.

multiple calls each day - don't leave voice message

Calling approximately once every 2 days. I never answer and there is never a message left.

Never leaves message and calls once  a day.  I tried to call it back and said it was not a working number. how can that be if they called me?

selling "free" industrial magazines - calling daily - can't get them to stop!