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:

    “I thought it altogether proper that I should take a brief furlough from official duties at Washington to mingle with you here to-day as a comrade, because every President of the United States must realize that the strength of the Government, its defence in war, the army that is to muster under its banner when our Nation is assailed, is to be found here in the masses of our people.”
    —Benjamin Harrison (1833–1901)

    “It’s a hard feeling when everyone’s in a hurry to talk to somebody else, but not to talk to you. Sometimes you get a feeling of need to talk to somebody. Somebody who wants to listen to you other than “Why didn’t you get me the right number?””
    —Heather Lamb, U.S. telephone operator. As quoted in Working, book 2, by Studs Terkel (1973)

    “Old age equalizes—we are aware that what is happening to us has happened to untold numbers from the beginning of time. When we are young we act as if we were the first young people in the world.”
    —Eric Hoffer (1902–1983)

    “Yesterday, December 7, 1941Ma date that will live in infamy—the United States of America was suddenly and deliberately attacked by naval and air forces of the Empire of Japan.”
    —Franklin D. Roosevelt (1882–1945)

    “I cannot say what poetry is; I know that our sufferings and our concentrated joy, our states of plunging far and dark and turning to come back to the world—so that the moment of intense turning seems still and universal—all are here, in a music like the music of our time, like the hero and like the anonymous forgotten; and there is an exchange here in which our lives are met, and created.”
    —Muriel Rukeyser (1913–1980)