I also keep getting calls from them - who are they?

Who the hell are these people?

this is a non working number for someone?  Keep calling me, but never leave a message!!!

Who ever this is keeps calling me also and I get a busy signal whenever i try to call back!

after 3 weeks of daily afternoon calls, my husband was home when they called at 6:15 p.m. He told them not to call again. Two weeks ago I  left my phone number on a site that offers quotes from health insurance companys, the calls from this phone number started the next day.  Even though he told them not to call again they called today 8/17/12 at 2:50 p.m.