The North American Numbering Plan (NANP) is an integrated telephone numbering plan administered by NeuStar (formerly Lockheed Martin IMS) which encompasses 24 countries and territories, including the United States and its territories, Canada, Bermuda, and 17 nations of the Caribbean. The term is also used, by metonymy, to refer to the geographic area in which that plan has been implemented.
The NANP is a standardized system of numbering plan areas (NPA), which have evolved over time into a system of three-digit area codes and seven-digit telephone numbers. Through this plan, telephone calls can be directed to particular regions of the larger NANP public switched telephone network (PSTN), where they are further routed by the local networks.
Read more about North American Numbering Plan: Current System, Dialing Plans, Charges, History, Expansion of Area Codes, Alphabetic Mnemonic System, Cellular Services and The NANP Numbering Scheme, New Area Codes Outside The U.S. and Canada, Fictional Telephone Numbers, Future Expansion of NANP, Special Numbers and Codes, NANP Countries and Territories
Famous quotes containing the words north, american, numbering and/or plan:
“By the North Gate, the wind blows full of sand,
Lonely from the beginning of time until now!
Trees fall, the grass goes yellow with autumn.”
—Li Po (701–762)
“How does it become a man to behave toward this American government to-day? I answer, that he cannot without disgrace be associated with it. I cannot for an instant recognize that political organization as my government which is the slave’s government also.”
—Henry David Thoreau (1817–1862)
“The task he undertakes
Is numbering sands and drinking oceans dry.”
—William Shakespeare (1564–1616)
“some little plan or chart,
Some fragment from his dream of human life,
Shaped by himself with newly-learned art;”
—William Wordsworth (1770–1850)