The new US-wide ‘do-not-call’ list continues to live up to the wildest dreams of lawmakers – and the worst nightmares of telemarketers.

On Friday, registration began online and by telephone in states west of Mississippi. By Tuesday, over 12.5 million phone numbers had been added, with an astonishing 158 phone numbers a second signed up on the first evening. Around 85% of numbers were registered via the website.

“This is really a phenomenal response,” beamed Eileen Harrington, director of marketing practices at the Federal Trade Commission. “There is an enormous enthusiasm and pent-up demand for this service.”

Data sourced from: Kansas City Star; additional content by WARC staff