Who is this and why are they dialing my number?

i did not pick up the phone. there was no message on the answering machine.
who would it be?

Just received a call.   From Centreville VA.   Said they were thanking me for my previous support of the Herritage Foundation.....I've never heard of or supported it....told them to stop and take my name and # off their list.

New phone no. to me - did not pick up - looks like a phony number and name ID: Massachusetts

They've called for several days in a row. They told me they were chimney sweeps...and I asked them to take me off their calling list. They're still calling!