Telephone Numbers in The United States

Telephone Numbers In The United States

The North American Numbering Plan (NANP) is an integrated telephone numbering plan that encompasses 24 countries and territories primarily in North America and the Caribbean.

The NANP is a standardized system of numbering plan areas (NPA) using telephone numbers consisting of three-digit area code, a three-digit central office code, and a four-digit station number. 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. The NANP is administered by the North American Numbering Plan Administration (NANPA), a service operated by Neustar corporation. The international calling code for the NANP is 1. Not all North American countries participate in the NANP.

Read more about Telephone Numbers In The United States:  History, Numbering System, Expansion, NANP Countries and Territories, Toll Charges, Dial Plans, Alphabetic Mnemonic System, Cellular Services, Fictional Telephone Numbers, See Also

Famous quotes containing the words united states, telephone, numbers, united and/or states:

    Fortunately, the time has long passed when people liked to regard the United States as some kind of melting pot, taking men and women from every part of the world and converting them into standardized, homogenized Americans. We are, I think, much more mature and wise today. Just as we welcome a world of diversity, so we glory in an America of diversity—an America all the richer for the many different and distinctive strands of which it is woven.
    Hubert H. Humphrey (1911–1978)

    A woman spent all Christmas Day in a telephone box without ringing anyone. If someone comes to phone, she leaves the box, then resumes her place afterwards. No one calls her either, but from a window in the street, someone watched her all day, no doubt since they had nothing better to do. The Christmas syndrome.
    Jean Baudrillard (b. 1929)

    The land cannot be cleansed of the blood that is shed therein, but by the blood of him that shed it.
    —Bible: Hebrew Numbers 35:33.

    We now in the United States have more security guards for the rich than we have police services for the poor districts. If you’re looking for personal security, far better to move to the suburbs than to pay taxes in New York.
    John Kenneth Galbraith (b. 1908)

    Action from principle, the perception and the performance of right, changes things and relations; it is essentially revolutionary, and does not consist wholly with anything which was. It not only divides States and churches, it divides families; ay, it divides the individual, separating the diabolical in him from the divine.
    Henry David Thoreau (1817–1862)