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  2. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    1.3 400 –499. 1.4 500–599. 1. ... consisting of three digits that are prefixed to each local telephone number ... but it was replaced by a 304-932 exchange area ...

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

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

    The first automated toll-free telephone numbers were assigned with area code 800, created as inbound Wide Area Telephone Service (InWATS) in 1966 (U.S. intrastate) and 1967 (interstate). These terminated on special fixed-rate trunks which would accept calls from a specified calling area with either no limit or a specific maximum number of hours ...

  4. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    In less than two years, area code 612 again exhausted its supply of telephone numbers, and necessitated a three-way division in 2000, creating the new area codes 763 and 952. The division again followed political boundaries, rather than rate center boundaries, resulting in additional split prefixes; a few numbers were transferred from 612 to ...

  5. Telephone numbers in China - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_China

    In other places, landline numbers consist of a three-digit area code followed by a seven- or eight-digit local number. Mobile phone numbers consist of eleven digits. Landline calls within the same area do not require the area code. Calls to other areas require dialing the trunk prefix 0 and the area code.

  6. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

    www.aol.com/finance/19-dangerous-scam-phone...

    Quick Take: List of Scam Area Codes. More than 300 area codes exist in the United States alone which is a target-rich environment for phone scammers.

  7. 400 (number) - Wikipedia

    en.wikipedia.org/wiki/400_(number)

    400 (four hundred) is the natural number following 399 and preceding 401. Mathematical properties ... Area code 415, a telephone area code for San Francisco, ...

  8. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    A toll-free telephone number or freephone number is a telephone number that is billed for all arriving calls. For the calling party, a call to a toll-free number from a landline is free of charge. A toll-free number is identified by a dialing prefix similar to an area code. The specific service access varies by country.

  9. Area codes in Mexico by code (400–499) - Wikipedia

    en.wikipedia.org/wiki/Area_codes_in_Mexico_by...

    The 400–499 range of area codes in Mexico is reserved for the states of Aguascalientes, Guanajuato, Hidalgo, Jalisco, Estado de México, Michoacán, Nuevo León, Querétaro, San Luis Potosí, Tamaulipas, Veracruz, and Zacatecas. The country code of Mexico is +52. [1] For other areas, see Area codes in Mexico by code.