Toll-Free Number
A 10-digit telephone number, currently beginning with the NPA of 800, 888, 877, 866, 855, 844, or 833 (As of June 3, 2017), where the receiving party incurs any call routing charges. A Toll-Free Number can exist in a status of Spare, Reserved, Assigned, Working, Disconnect, Transitional, Suspend, and Unavailable.