This number keeps calling but when I answer and repeatedly say "Hello" no one says hello back,
even though I can hear many voices in the background.  I thought signing the national "DO NOT CALL REGISTER" would finally eliminate all this annoying calls but some "companies" apparently just ignore it.  I wish there were laws that would go after these people.  I am retired and need my daily nap, and SO many times I am disturbed by a ringing phone and it's one of these unwanted, unsolicited calls.  You don't even get the opportunity to ask them to please stop calling.

caller wanted to know if anyone has diabetes in the household

This number calls and calls - ID'ed as California.  I never answer and have now blocked this number.

Don't know this number and don't answer calls at all until I know who they are.  Can't believe it is  political; they usually want to know if you might support them.  This seems like a paid commercial or nonprofit type solicitation.  I was suckered into a resort deal where you buy a time share.  What a total waste, and more, it is a legal way of constant harassment.  I get three calls every other day...wanting me to upgrade, spend more, etc.  They have the nerve to charge me if I don't come.  It is legal rip off and a headache.  There are much less expensive ways to vacation,  this is a sham.  424 may be a medical solicitation network agency, like the car donor companies that are hired by non profits.  I too am on the DNC list, but get phone calls from companies I have donated to over the years, nevertheless.  I am not able to help now, but don't mind them;  I am unhappy though when they sell my info to some new plan for fundraising.  Aurgh!

The name on caller ID was CALIFORNIA and they claim they are with the Diabetes something or another and want to know if either my spouse or I are diabetic and we qualified for more annoying phone calls! LOL