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  2. List of Veterans Affairs medical facilities - Wikipedia

    en.wikipedia.org/wiki/List_of_Veterans_Affairs...

    Veterans' health care in the United States is separated geographically into 19 regions (numbered 1, 2, 4–10, 12 and 15–23) [1] known as VISNs, or Veterans Integrated Service Networks, into systems within each network headed by medical centers, and hierarchically within each system by division level of care or type.

  3. List of mobile telephone prefixes by country - Wikipedia

    en.wikipedia.org/wiki/List_of_mobile_telephone...

    Users can now switch carriers and keep their cell phone numbers, including prefix. Usually NSN are 10 digits long for mobile and personal services. 31100: Telespazio: 31101: Telespazio: 31105: Spal Telecommunications 313: Rete Ferroviaria Italiana: 319: Intermatica 320: Wind: 322: 13 (3 10) Wind operator reserved (routing number) 323: 12 ("32 ...

  4. Ten-digit dialing - Wikipedia

    en.wikipedia.org/wiki/Ten-digit_dialing

    In seven-digit dialing, callers dial the three-digit central office code and the four-digit station number of the destination telephone if it resides in the same numbering plan area. Dialing of an area code before the telephone number, referred to as ten-digit dialing, was only necessary for foreign NPA (FNPA) calls.

  5. Veterans Health Administration - Wikipedia

    en.wikipedia.org/wiki/Veterans_Health_Administration

    The Veterans Health Administration (VHA) is the component of the United States Department of Veterans Affairs (VA) led by the Under Secretary of Veterans Affairs for Health [2] that implements the healthcare program of the VA through a nationalized healthcare service in the United States, providing healthcare and healthcare-adjacent services to veterans through the administration and operation ...

  6. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_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, respectively. [ 1 ] In 1949, Oakland, CA, received the fifth regional dial switching center for Operator Toll Dialing in the nation, [ 2 ] which set the stage for ...

  7. North American Numbering Plan expansion - Wikipedia

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

    Thus, NXX is a number from 200 through 999, while XXXX is a range from 0000 through 9999. The first three digits of a telephone number are the numbering plan area code (NPA code, or simply NPA). The next three, NXX, identify the central office and the last four digits are the line number of an individual office.

  8. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    This rounded the total number of digits in a subscriber telephone number to ten: a three-digit area code, a three-digit central office code, and four digits for each line. This fixed format defined the North American Numbering Plan as a closed numbering plan, [27] as opposed to developments in other countries where the number of digits was not ...

  9. California Department of Health Care Services - Wikipedia

    en.wikipedia.org/wiki/California_Department_of...

    It was formerly known as the California Department of Health Services, which was reorganized in 2007 into the DHCS and the California Department of Public Health. [1] On September 10, 2019, DHCS Director Jennifer Kent announced her resignation, effective September 30, 2019. [2]