MapInfoÆ RateCenterInfoô combines precise geographic Rate Center boundaries with a comprehensive list of NPA/NXX combinations included in each Rate Center. MapInfo's methodology yields more accurate results than visually combining individual Wire Centers under the same Rate Center. Often times, multiple Rate Centers can be in operation at a specific Wire Center. Additionally, a specific Wire Center can be assigned to numerous Rate Centers. Rate Centers are increasingly becoming the telecom region of choice for Competitive Local Exchange Carriers (CLECs) and Internet Service Providers (ISPs) when determining areas of operations.

RateCenterInfo ships with a single U.S. table, as well as individual tables for each state. This U.S. tiling can help to streamline your data loading process and reduce the number of tables you need to manage.