called twice, no message.

I got 3 calls from this # today - none answered, as I don't know anyone in area code 312, and Im tired of telemarketers.   After reading the above comments, I too tried to call it back, and I got a recording saying this # isn't in service. So this is a # that is being spoofed to avoid detection: clearly either a telemarketer or collection agency.

I consider this number a attempt at credit fraud or Identity Theft, I don't answer the phone to any number I do not recognize.
One nice feature of cell phones is I can make a group (called spam) and set the default ringer of the SPAM group to none.  So it never rings.
So far I have over 18 numbers in my SPAM group and this one makes it 19.

I had this number call today at 4:25 p.m., I answered with no reply from the caller, though I did notice I heard what sounded like keyboard clicks in the background - as when talking to someone who is using a computer keyboard at the same time.  I called back with in 15 minutes, no one picked up and no answering service did either.  It is possible it is a collector.  As a note,  I personally have been sending resumes off to Tech position posts on Craigslist and have noticed some complaints from others doing the same that have encountered "illigitamate" posts and possible data mining by these posters for neferious reasons.  I did a Re-verse Lookup on the number over the web via Intelius.com, its there as a wireless number, but you must pay 14 dollars for the record for that number.

called, left no message.  showed as wireless caller.  don't know anyone in chicago.

got a call.  no message.

called twice today,it was a hangup.I called back and it was a cricket# out of service.

I started getting calls from this number right after paying to get my lexis nexis background information about myself.  

Does that ring a bell with anyone?

I received two calls today, the first call I missed so I tried calling it back and it just says "the service you are attempting to use has been restricted or unavailable".  I answered the second call and she asked for me then I told her she had the wrong number and she just kept saying that she put this number down as her phone number and I just kept telling her that she had the wrong number.

Called, left no message.

I started getting calls from this number today.  They were at 8:48am and 11:48am so far.  I also don't answer if I don't know the number.  If they were calling on my home phone I could block it, but they are calling my cell number.

I received two calls from this number today at 10:43am and 1:19pm.  It only rings once and they hang up without leaving a message.

We get a call from this number about once a week.  It sounds like it's a collection company.  She's alway obnoxious.

calls are two hours apart and just hang up when answering machine turns on. i dont a reverse number search and it said buffalo grove, il. but unlisted

Just got a call from this number,he said "Hello Marla" and then he was gone. I have tried calling it back and says it is not a working number. My caller ID says cell phone from Chicago.....I don't know anyone in Chicago!!!

Calls constantly leaving no message.

I got a call today at 11:47 a.m.  A person told me I had an important call and then put me on hold.  I finally hung up.  In addition, they used a former last name.  Argh!

Has anyone discovered who this number belongs to?

I GOT A CALL FROM THIS NUMBER TODAY I DO NOT WHO IT IS, AND THEY DID NOT LEAVE A MESSAGE, AREA CODE IS FROM CHICAGO.

this number just started calling us 2 days ago.  The don't leave messages.

getting a call from this number about 2x/week.  I called the number and it says that it is a non-working number.

This number started calling two weeks ago. I don't answer as I don't know the caller, and they don't leave messages. It's getting annoying.