RateCenterInfo provides a comprehensive list of NPA/NXX combinations in each rate center. You can use RateCenterInfo to determine the area code/exchange (NPA/NXX) combinations that are included in specific rate centers. RateCenterInfo also includes a map of rate center points across the United States and Canada.
The data in RateCenterInfo can be combined with geographic, business, and customer data for better-informed decision-making, cost control, and identification of potential marketing opportunities.