The FCC allows local telephone companies to recover certain costs for providing telephone number portability to its customers. Telephone number portability allows residential and business customers to retain, at the same location, their existing local telephone numbers when switching from one local telephone service provider to another. The LNP Charge is a fixed, monthly charge. Local telephone companies may continue to assess this charge on their customers’ telephone bills for five years from the date the local telephone company first began itemizing the charge on the bill. This charge is not a tax.