Repeatedly call asking for certain person and Human Resources.

I've been receiving calls from various numbers all the same caller: Denver Post.  Not a customer, never was a customer. I used to block the numbers with Verizon, but those blocks expired. Now I block them through a cell phone app, but they just keep calling from a different number. Today it was this number. I answered the calls twice in the past without realizing who was calling, listened to the pitch rather than rudely cutting them off, told them both times I am not interested in getting the paper, to stop calling me, to remove me from the call lists, and reported it to AG's office and National Do Not Call list.  The calls keep coming.