In the United States, toll-free numbers begin with one of the following three-digit codes: 800, 888, 877, 866, 855, 844, or 833.
To dial a toll-free number in the USA, you can simply dial the toll-free number from any phone within the country. You do not need to enter any area codes or other digits before the toll-free number.
For example, if the toll-free number is 1-800-123-4567, you can simply dial 800-123-4567 from any phone within the United States.
Toll-free numbers in the USA are regulated by the Federal Communications Commission (FCC), and businesses and organizations can obtain a toll-free number from a variety of service providers.