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  2. Blue Cross Blue Shield Association - Wikipedia

    en.wikipedia.org/wiki/Blue_Cross_Blue_Shield...

    In 1982, Blue Shield merged with The Blue Cross Association to form the Blue Cross and Blue Shield Association (BCBS). [11] Prior to 1986, organizations administering BCBS were tax exempt under 501(c)(4) as social welfare plans. The Tax Reform Act of 1986 revoked the exemption, however, because the plans sold commercial-type insurance.

  3. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_area_codes

    originally split off from 213 to form a ring around downtown Los Angeles and the city of Montebello on June 13, 1998; in August 2017, the boundary between 213 and 323 was erased to form an overlay. On November 1, 2024, it was overlaid by area code 738. 341: overlay with 510: started service on July 22, 2019. 350: overlay with 209

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

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

    created for the southern third of California; 1951: split to create 714; 1957: split to create 805; 1984: split to create 818; 1991: split to create 310; 1998: split to create 323; 2017: merged with 323 as an overlay; 2024: overlaid by 738; 214: Texas (Dallas metropolitan area) 1947: 1953: split to create 817; 1990: split to create 903; 1996 ...

  5. Wellmark Blue Cross Blue Shield - Wikipedia

    en.wikipedia.org/wiki/Wellmark_Blue_Cross_Blue...

    Wellmark is headquartered in downtown Des Moines and Sioux Falls. It has 1707 employees in Iowa and 171 in South Dakota. [5] It consists of Wellmark Blue Cross and Blue Shield of Iowa, Wellmark of South Dakota, Inc. (doing business as Wellmark Blue Cross and Blue Shield of South Dakota) and Wellmark Health Plan of Iowa, Inc. [5] The Wellmark Foundation is a private foundation to support health ...

  6. 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 ...

  7. Blue Shield of California - Wikipedia

    en.wikipedia.org/wiki/Blue_Shield_of_California

    Blue Shield of California is a mutual benefit corporation and health plan [6] [7] founded in 1939 by the California Medical Association. It is based in Oakland , California, and serves 4.5 million health plan members and more than 65,000 physicians across the state.

  8. Covered California - Wikipedia

    en.wikipedia.org/wiki/Covered_California

    Of the 5.4 million Californians who gained health insurance coverage during this period, 1.4 million received coverage through Covered California, and 4.1 million received coverage from the expansion of Medi-Cal. [30] The number of individuals covered through the exchange has not increased significantly from the 1.4 million who enrolled during ...

  9. Area codes 909 and 840 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_909_and_840

    Area code 909 was created on November 14, 1992, in an area code split of 909, and 840 was added to the numbering plan area to form an overlay complex effective February 23, 2021. While most of western Riverside County now uses Area code 951 , some residents in Eastvale and Corona were allowed to keep the 909 area code after the split in 2004.