I am receiving calls every 20 minutes from 213-387-3713 . . . what company is this telephone #?

this is a janitorial service and this guy is simply IRRITATING!!!!! i swear i get a call from this [***] every single freakin day and like every 5 - 15 minutes!!
are they that hard up for business that they have to harrass us this way??
give it a rest you dumb jerks!!

I too receive calls from this number, possibly 5 PER MINUTE! They hang up and redial all day throughout the day.  I will not do business with this company for this reason alone. I just called the number back and informed the person that answered that this is happening and we would like them to stop. Also told her if we were interested in their services, WE WILL CALL THEM BACK.

This is a number for Main Source Janitorial, Mike Adams.  They will call dozens of times, never leaving a message.  

I've already told them we are not seeking bids.  

Main Source Group.  It's a janitorial company.  They call and hang up repeatedly.  I have 16 missed calls from them over a three day period.  We told them we are not interested, but they start calling again in a few months.