I get calls from this number and the person hangs up after I say hello.  I tried to call the number back and a message comes back as number not in service or disconnected.

I too got a call from this number.  I did not answer and they did not leave a message.  Here's what 411.com says about it: http://www.411.com/search/Replay?search_id=70231342396556069513&lower=1&more_info=1&form_mode=  

Not much help.

I also received a call from this number. I answered and it was a female doing a short survey asking first about the quality of your city's drinking water. She also asks other questions such as do you get bottled water, is your home single family, do you work and the basic telemarketer questions. I normally do not answer any of these types of calls but alot of them call on their cell phones etc... and your not sure if it may be someone's phone number that you may not be aware of. It was alot easier when they were using the 800 numbers. Needless to say I hung up on her so if anyone knows who this is, please post it.
Thanks...

I also received a call from this number.  Unfortuantely, I did participate in the survey.  I dialed the phone number back and it was disconnected.  It is a cell phone from Arlington Heights.  I called the police and they came out and investigated the call.  If anyone receives a call from this number DO NOT ANSWER ANY QUESTIONS matter of fact - just don't answer the call period.  Something is just not right about this "telemarketer"..........

Female doing a survey about city/well water. Received a second call from this number a few days later - this time a male caller. We told him we had already received a call about the same survey and we hung up.