Who called from 2545239678

Received call from male about 30 minutes ago. Told them I was on  DO NOT CALL LIST, he ignored it and tried to ask questions. I hung up.

Calls, i answer and recieve no response. i hang up and call back with no answer 3 times... Christmas DAY MIND YOU

They called my office number, I dont know how they got it. When I answered they didnt say anything, I kept saying "Hello, hello???" but nothing.
I went on whitepages.com and searched the number and no results, and so i payed 2.99 for them to tell me who the owner of the number is. Whitepages then sent me an email, and they said the number belongs to: LLM SVCS WACO.
Who the heck is that?

Got a call from this number ID'd as "private caller." This is the local area code here, but no idea who the caller is.

Owner of the number is Brooks Fiber Properties Of Texas in Waco, Texas, per reverse directory.

Per google, their 8-K for 1997
http://www.secinfo.com/dsvrw.831.d.htm

They appear to do some kind of cell phone business or service. See http://bearonbusiness.com/brooks-fiber-properties-mimics-mfs-and-tcg
in Bear on Business.