What is what area code is 866?

The area code 866 is a toll-free number that is not associated with a specific geographic location. Toll-free numbers are commonly used by businesses and organizations to allow customers or clients to contact them free of charge. Calls to toll-free numbers are typically paid for by the subscriber rather than the caller.

Area code 866 is one of the original toll-free area codes established in 1996 when the 800 number system was expanded to include additional prefixes. Other toll-free area codes include 800, 888, 877, and 855. Calls to numbers with the 866 area code are free for the caller and are typically used for customer service hotlines, technical support lines, and other business-related contact numbers.