These calls show up on my caller ID as just "Unknown Name 216-4870", as though it were a local call from within my area code (831).
 
I pay for Anonymous Call Rejection; however, it does not screen out calls like this which give their number without a name.
 
They have called about a dozen times.  Each time I answer with my name and the name of my company.  They never say anything and hang up after a few seconds.
 
When I call the number I get a message that says, "You have reached Meyer TeleServices.  Our business hours are Monday through Friday, 8 AM to 5 PM, Central Standard Time.  If you have a question, concern, or wish to be added to our Do Not Call Database, please call back during our business hours.  Thank you."

This number called us twice today September 23 at 7:14pm and 11:04am.  I will report them to the FCC

This number is Meyer Teleservices and you can call them back at:
Meyer Teleservices
14 7th Ave N. Saint Cloud, MN 56303
PHONE: (800) 676-9233

They make it  hard to find who they are but this should help you get in direct contact with them to tell them to stop calling you. They are a political survey group that is randomly calling through a loophole created by Congress to allow for them to bypass the NO CALL LIST.

Please call them and disrupt their working just the same as they do with us.