Mystery Solved. These calls are NOT coming from The Heritage Foundation. They almost certainly originate from telemarketer The Heritage COMPANY. http://www.theheritagecompany.com/
Before you automatically brand the Heritage Foundation as a bad group making harassing phone calls, you should know that Heritage is headquartered in Washington, D.C., area code 202. I have no connection with this organization, other than receiving their computer newsletter. But I know they are a fine, upstanding group who wouldn't stoop to these shenanigans.
The 323 area code is in California and, with all due respect to most Californians, it's not much of a stretch to suspect somebody of a, let's say "liberal" nature, attempting to besmirch an organization with an excellent reputation.
repeated calls... no response/click when i pick up my landline phone... all hours... most often early evening... most recently tonight(sunday)@7pm. i called back and got a recorded message..."heritage foundation...thanks for calling back...office hours are closed..."
Caller ID: 323-330-1426
Caller: heritage foundation