https://www.donotcall.gov/default.aspx In a few weeks, cell phone numbers are being released to telemarketing companies and you will start to receive sales calls. Call this number within 5 days from today from your cell phone, 888-382-1222 which is the number for the National Do Not Call Registry sponsored by the Federal Trade Commission. It blocks your number for 5 years. I registered through the website. Cheers.