About the 30th call in a row from various area codes. Same message when you call back about getting on a no call list. Doesn't stop 'em from calling back the next day.
Never follow a scammers opt out instructions or even call back, it will result in MORE calls. The DNC is also useless since it's only to stop legit telemarketers. Not answering when a scammer calls, not calling back, and using a call blocker are the best defenses against scammers. Reading 800notes also EDUCATES people on how these scams work.