Block toll-free call sales calls by registering your phone number with the Federal Trade Commission's Do Not Call Registry. To stop receiving toll-free non-sales calls, you may have to speak to your phone provider about blocking specific numbers. A fee may apply.
Signing up for the National Do Not Call Registry is free. You can sign up either on the National Do Not Call Registry website or by calling the Federal Trade Commission's designated number, 1-888-382-1222, from the phone you want added to the registry. If you sign up via the website, you receive a confirmation email which you must click on within 72 hours in order to complete the process.
Once your number is on the list, sales companies should stop calling your phone after 31 days. If they do call, it may indicate a possible scam. The Do Not Call List does not block political, charitable, survey, informational or debt collection calls. To stop receiving those calls, talk to your phone provider. Some smartphones also have apps that block such calls.
If you still receive illegal calls after your number has been on the list for a significant amount of time, you can file a complaint either by calling the Federal Trade Commission or visiting its website.