Received a call from this number and person was asking about confidential information and wanted to verify my address.

I just got a call from this number too. And at the same moment there was a silver Honda Element SUV outside my house, after ignoring the call, the car slowly drove off.  I didn't see the license plate.  I didnt answer because i didnt know the number, and if it is a debt collector, then they had better just listen to our answering machine message which says our names, and not jose or lupe. We have been getting calls from debt collectors for 2 years since we moved into our house looking for people who used to have the phone number.  I even paid for the owners name on whitepages.com and it came up with "no name listed".  
What the hell?

Ok, I called them back and they said their name too fast for me to understand, but they were looking for someone named Olga, and only a street over from me I think. I asked them to change their records, we'll see if they do.

Transworld Systems Incorporated

Do NOT CALL