Hung up on my voicemail too did a whitepages search and got this PRTC Home Wca Atlanta GA searched that and came up with some info about sales calls.

Just got a call, didn't pick up and they did not leave a voicemail.  When I called the number back, I got an automated system saying they were "WCA Subscriber Services" - you can press 5 to get to cancellation (where they make you listen to a long list of the reasons why not to cancel), then press 2 to cancel (it takes7 days to process cancellation request).
Before you cancel, they have an automated message explaining all the benefits of not cancelling.  Supposedly you're entered into a daily cash giveaway every time you pick up your phone.  I cancelled anyway.

Called me, didn't recognize, no message

Even though I am on the National No Call List these people think they can still call. I would like to press charges.

just received a call from this number to my cell phone, didnt recognize the number, so i didnt answer, left no voice mail