What is a Rate Center?
A rate center is a geographical area used by a Local Exchange Carrier (LEC) to determine the boundaries for local calling, billing and assigning phone numbers. Typically a call within a rate center is local, while a call from one rate center to another is a long-distance call.
A geographically specified point used for determining mileage-dependent rates for PSTN calls. It is defined by a set of Vertical & Horizontal coordinates.