Got a call answered they wanted to know who I was and my address for a personal business matter.  Said they were the CDA group.  I refused to give them any information until they gave me information about who they were.  They refused to answer so I hung up.

I got a call from the same number. They wanted my personal information too and would not answer even who they were.  I assume it is a debt collector, but don't they have to identify who they are?

I too got a call from 301-882-9932 and a caller id of "new market, md".  It sounds like some kind of scam.  Don't give anyone information before you know who you're talking to.

They have called 3 times today.  They have called every week for the past few weeks, not sure maybe months, phone log goes back 3 weeks but I recall seeing this number before that.  I ignore their calls.  I do not answer.  
Located in Frederick Maryland on Baltimore National Pike and Rte 40, Frederick Maryland.

This number has been calling my cell phone for a month now. I answered once and all that there was on the other side was some sort of telemarketers noise. I hung up and have not been answering in case is come kind of scam to get me to answer and bill me for some ridiculous amount of money!