Same thing just happened to me. My caller ID just said TEXAS and phone number. They called, didn't respond to my Hello and after 10 seconds hung up.

This number calls several times a week.

I got a call this early afternoon from 469-254-6201.  They said it was Crystal from Reliance Air Duct cleaning.  I said "I'm on the Do Not Call list" and she said "I don't give a F**K about the do not call list.  Elsewhere on this site (Whocallsme) I found a different phone number being used by Reliance Air Duct cleaning.  I called them back (as the 469 # doesn't work) and voila Crystal answered the phone.  

If calling back at 469-254-6201 doesn't help you can call 214 382-5610.  Might as well make their life annoying too.

I have to say the Do Not Call registry is totally useless and they don't even fine companies or anything so what is the point?  (this from a person I know who does random cold calls...no one does give a F*** about the registry/list.)

I also got a message saying it was from Reliance Air Duct cleaning.  My entire reply was "I am on the Do Not Call List" "Crystal" replied by saying "I don't give a F**K about the Do Not Call list.  I wonder if she kisses her momma w/ that mouth.  Probably so, as he momma is probably the hind end of a horse.

I also just got a call from this number.  When I called it back, after being hung up on when answering, I was advised that the number was no longer in service.  This bothers me as there have been some  questionable solicitors in the neighborhood recently .  Why would they hang up if their motive was sincere?

Got a call from this number. Caller ID reported it as "Texas," but it was mail voice claiming to represent a carpet and duct cleaning company. I politely informed him I was on the Do Not Call List and hung up.

They called my home aswell and when answered, they stayed listening and then hanged up and when called back also got a recording that said "DFW 01. The mobile # you have called is no longer in service." WTF!

When I answered "hello" I could barely hear the caller's whisper. Then she (sounded like a female whisperer) hung up.
When I tried calling back a couple of times, I got a recording:
"DFW 01. The mobile # you have called is no longer in service."

If this caller indeed is an escort service, that would explain why she's hanging up on the females who are posting complaints on this bulletin board.

5/1/2012 just rec. call from above number. did not leave message.

Just got the same thing - nothing on the line but a hang up.  The reverse search shows ads for the above mentioned Escort Service.

Has called twice in as many weeks. Called ID says Vanessa Escort Service

The same thing just happened to me.

I also received a call from this number to my house.  I answered, but they didn't say anything and hung up moments later.