called at 8:22pm, no message left.  Fifth similar call this evening, all from same area code & exchange

712-275-4856
712-275-4889
712-275-4852
712-275-4801
712-275-4876

I have been getting phone calls from the 712 275 4856 and when I dial back it is a non working number

Received a call from 712-275-4802 (Utah).  Called them back and it went to a 'busy' signal after about 10 seconds..  is this a VOIP number??

Make a complaint here http://www.schallertel.net/contact.htm

numbers always hang up and do not answer when called back

Just stop the calls, 8 am really ? I know it's not a debt collector but calls have been coming in from around the country recently about credit card debt. I have no problem with either SO STOP THE CALLS !! Numbers calling  Iowa 712-275-4875. 712-275-4846. 712-275-4849. Bahamas 424-000-4266. Nebraska 402-935-7733.  Unknown 866-227-7442.