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  2. List of Ohio area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Ohio_area_codes

    In 2016, area code 614 was overlaid with 380 in the Columbus/Central Ohio area for the same reason. In 2020, 326 was added as an all services overlay for 937. Area code 283 was added as an overlay for 513 on April 28, 2023. [2] [3] Area code 436 went into service on March 1, 2024, as an overlay of 440. [4]

  3. 951 area code - Wikipedia

    en.wikipedia.org/?title=951_area_code&redirect=no

    Pages for logged out editors learn more. Contributions; Talk; 951 area code

  4. Original North American area codes - Wikipedia

    en.wikipedia.org/wiki/Original_North_American...

    Each NPA was identified by a three-digit area code used as a prefix to each local telephone number. The United States received seventy-seven area codes, and Canada nine. The initial system of numbering plan areas and area codes was expanded rapidly during the ensuing decades, and established the North American Numbering Plan (NANP).

  5. Area code 951 - Wikipedia

    en.wikipedia.org/wiki/Area_code_951

    Area code 951 is a telephone area code in the North American Numbering Plan for western Riverside County in the southern part of the U.S. state of California. It was assigned in 2004 to a new numbering plan area that was created by an area code split of area code 909 .

  6. Automotive navigation system - Wikipedia

    en.wikipedia.org/wiki/Automotive_navigation_system

    TravTek covered a 12,000 square mile area in Orlando and its metro areas, as well as contained listings for restaurants, AAA-approved hotels and attractions. [14] 1991: Toyota introduced GPS car navigation on the Toyota Soarer. 1991: Mitsubishi introduced GPS car navigation on the Mitsubishi Debonair (MMCS: Mitsubishi Multi Communication System ...

  7. Seven-digit dialing - Wikipedia

    en.wikipedia.org/wiki/Seven-digit_dialing

    They were introduced to postpone area code splits in major cities such as New York City and Los Angeles, but in 1988, AT&T/Bellcore made them mandatory for area codes nearing exhaust of non-interchangeable codes. The Massachusetts 617/508 split was the last one before the policy changed—617 did not yet have interchangeable NXXs at the time.

  8. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    In California and New York, because of the existence of both overlay area codes (where an area code must be dialed for every call) and non-overlay area codes (where an area code is dialed only for calls outside the subscriber's home area code), "permissive home area code dialing" of 1 + the area code within the same area code, even if no area ...

  9. Portsmouth, Ohio - Wikipedia

    en.wikipedia.org/wiki/Portsmouth,_Ohio

    Portsmouth is a city in and the county seat of Scioto County, Ohio, United States. [5] Located in southern Ohio 41 miles (66 km) south of Chillicothe, it lies on the north bank of the Ohio River, across from Kentucky and just east of the mouth of the Scioto River.