National Do Not Call Registry "The National Do Not Call Registry is open for business, putting consumers in charge of the telemarketing calls they get at home. The Federal Government created the national registry to make it easier and more efficient for you to stop getting telemarketing sales calls you don't want. You can register online at DONOTCALL.GOV if you have an active email address. If you live in a state west of the Mississippi River (including Minnesota or Louisiana), you can call toll-free, 1-888-382-1222, from the number you wish to register. Phone registration will open to the entire nation on July 7. Registration is free."