-- Registry takes effect 90 days after you call.
-- Consumers may still receive calls for 18 months from businesses from which they have made a purchase or payment.
-- Most telemarketers cannot call if your number is in the National Do Not Call Registry.
-- Home and mobile phone numbers are registered free.
-- Registration will be effective for five years.
-- 50 million people have signed up nationwide
-- 409,009 Nevadans had signed up for the list as of Sept. 16
