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  2. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_area_codes

    In 1947, the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan and assigned the original North American area codes. The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state ...

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

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

    This feature group 'B' has been rendered obsolete by 1010xxx "dial-around" feature group 'D', but the exchange remains reserved in each individual area code. 951: California (western Riverside County, including Riverside, Corona, California, Lake Elsinore, Mira Loma, Moreno Valley, Sun City, Temecula, Winchester, Lakeview, etc.) July 17, 2004

  4. Category:Area codes in California - Wikipedia

    en.wikipedia.org/wiki/Category:Area_codes_in...

    Area codes 213, 323, and 738; Area codes 310 and 424; Area codes 408 and 669; Area codes 415 and 628; Area codes 510 and 341; Area code 530; Area code 559; Area code 562; Area codes 619 and 858; Area code 626; Area code 650; Area codes 714 and 657; Area code 661; Area codes 707 and 369; Area codes 818 and 747; Area codes 760 and 442; Area codes ...

  5. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

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

    What Is a Scam Phone Number or Area Code? ... What phone number can I call to report a spam call? You can call 888-382-1222 or visit DoNotCall.gov to report spam calls, ...

  6. A new area code is coming to Northern California. Who gets ...

    www.aol.com/area-code-coming-northern-california...

    The current area code is “in high demand” and is expected to be depleted by September 2025. A new area code is coming to Northern California. Who gets access to the new phone numbers?

  7. List of area code overlays - Wikipedia

    en.wikipedia.org/wiki/List_of_area_code_overlays

    In addition to being the sole area code in the Space Coast region around the Kennedy Space Center, this is the only partial overlay area code in North America 323: 213: Central Los Angeles, incl. Downtown L.A. and Hollywood: 326: 937: Southwest Ohio: 331: 630: Western suburbs of Chicago: 332, 646 , 917: 212

  8. North American Numbering Plan expansion - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering...

    Permissive dialing would be allowed because exchange equipment, on detecting a 9 as the second digit of the area code, would respond appropriately to expect 11 digits, or 10 in the absence of a 9 in that position. Under this plan, the New Jersey telephone number (609) 555-0175 would become (6909) 555-0175.

  9. Area codes 408 and 669 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_408_and_669

    Until the late 1970s, central office code protection was maintained between area codes 415 and 408, so that Telephone numbers were not duplicated across, and subscribers could dial seven-digit San Francisco or Berkeley numbers without dialing an area code. Population growth, facsimile machines, and pagers caused demands for numbers to outrun ...