This number calls me at least once a day, and I don't pick up. I decided to call it back, and I got a recording saying this number is not in service. It is obviously a scam of some sort, since that isn't the real phone number.
Got this call today, but did not pick up. I don't think it's a bill collector because I don't have any past due bills and they didn't leave a message. Most likely a fundraiser - or telemarketer that's never heard of the 'do not call' list.