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  2. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    Toll-free numbers are also sometimes confused with 900-numbers, for which the telephone company bills the callers at rates far in excess of long-distance service rates for services such as recorded information or live chat.

  3. Long-distance calling - Wikipedia

    en.wikipedia.org/wiki/Long-distance_calling

    Long-distance calling from landlines was opened to competition in the early 1990s and the use of long-distance revenue to subsidise local service was phased out a few years later. It is not possible for mobile telephone subscribers or coin-paid telephone users to select a default carrier, so long-distance calls are often priced higher from ...

  4. List of United States telephone companies - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    Telephone and Data Systems, (through its subsidiary TDS) serves mainly rural areas in parts of 36 states. [3] Altafiber, formerly known as Cincinnati Bell, which serves the Cincinnati metropolitan area, and Hawaii (due to its ownership of Hawaiian Telcom). [4]

  5. List of mobile virtual network operators in the United States

    en.wikipedia.org/wiki/List_of_mobile_virtual...

    Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.

  6. Local exchange carrier - Wikipedia

    en.wikipedia.org/wiki/Local_exchange_carrier

    Local exchange carrier (LEC) is a regulatory term in telecommunications for the local telephone company.. In the United States, wireline telephone companies are divided into two large categories: long-distance (interexchange carrier, or IXCs) and local (local exchange carrier, or LECs).

  7. Interexchange carrier - Wikipedia

    en.wikipedia.org/wiki/Interexchange_carrier

    An interexchange carrier handles traffic between telephone exchanges. Telephone exchanges are identified in the United States by the three-digit area code (NPA) and the central office prefix, which is the first three digits of the local telephone number (NPA-NXX). Different exchanges, or central offices, generally serve different geographic areas.

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