This number has been calling my cell phone several times a day and leving no message. I did a reverse look up and it said "Multim Worldcom" and gave me an address in Philadelphia.  

calling me a few times a day everyday

can't call back only a voicemail message and when i answer i get no response

twice in 2 days, hangs up the second i pickup

And a third time, called back and they been closed for over 2 hours.

I receive calls from this number for a year. It's a company who knows the car I have and is trying to sell me an extended warranty for several thousands of dollars. I don't know the company name, but for the last year to year and a half, I have requested to be removed from their list and I'm STILL getting calls. I have tried to call back and use the prompt to be taken off the list, but the number just hangs up on me.

I told them today since I haven't been removed from the list, I'm reporting them. This is ridiculous now.