North American Numbering Plan

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, north, american, numbering and/or plan:

    The Anglo-Saxon hive have extirpated Paganism from the greater part of the North American continent; but with it they have likewise extirpated the greater portion of the Red race. Civilization is gradually sweeping from the earth the lingering vestiges of Paganism, and at the same time the shrinking forms of its unhappy worshippers.
    Herman Melville (1819–1891)

    I felt that he, a prisoner in the midst of his enemies and under the sentence of death, if consulted as to his next step or resource, could answer more wisely than all his countrymen beside. He best understood his position; he contemplated it most calmly. Comparatively, all other men, North and South, were beside themselves.
    Henry David Thoreau (1817–1862)

    The greatest public health threat for many American women is the men they live with.
    Anna Quindlen (b. 1952)

    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)