The name of the main service offering a do not call registry in the United States of America is the "National Do Not Call Registry". You can find more information about this service at donotcall.gov.

The United States doesn't have a central registry.

United States Heraldic Registry was created in 2005.

A person with a cell phone can put that number on the National do Not Call Registry. The do not call registry shows telephone numbers that are not okay to call.

To access do not call services, you can register with the National Do Not Call Registry (www.donotcall.gov). You will need to provide your home or mobile number and some basic details.