Think all the numbers ---6609,6610,6612, etc----all apply to the same "organization"; all calls are from Waco,Texas..They claim to be collecting for police but not buying it. Scam!
I've started tieing up the callers as much as possible! I simply answer the phone, but set it on the table...I say nothing! I just keep on about my day...in less than 30 seconds, usually, they disconnect! If not, lol, they're still tied up with an unresponsive call.