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

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

    A sincere and steadfast co-operation in promoting such a reconstruction of our political system as would provide for the permanent liberty and happiness of the United States.
    James Madison (1751–1836)

    Colonel “Bat” Guano: Okay, I’m going to get your money for you. But if you don’t get the President of the United States on that phone, you know what’s going to happen to you?
    Group Captain Lionel Mandrake: What?
    Colonel “Bat” Guano: You’re going to have to answer to the Coca-Cola company.
    Stanley Kubrick (b. 1928)

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    R.W. “Tiny” Rowland (b. 1917)

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    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)