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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.
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.
Premera Blue Cross is a not-for-profit Blue Cross Blue Shield licensed health insurance company based in Mountlake Terrace, Washington, United States. It sells health insurance plans under the Blue Cross license in Washington state except Clark County and under both of the Blue Cross and Blue Shield licenses in Alaska .
The company was founded in 1936 and is based in Chicago, Illinois with a network of offices in the United States. Health Care Service Corporation is the licensee of the Blue Cross and Blue Shield Association for five states. It concentrates its operations in Illinois, Montana, New Mexico, Oklahoma, and Texas.
The IMSI is often used as a key in the home location register ("subscriber database") and the MSISDN is the number normally dialed to connect a call to the mobile phone. A SIM has a unique IMSI that does not change, while the MSISDN can change in time, i.e. different MSISDNs can be associated with the SIM.
The Blue Cross Blue Shield Association (BCBSA) is a federation of 38 separate health insurance organizations and companies in the United States. Combined, they directly or indirectly provide health insurance to over 100 million Americans. [110]
A broad division is commonly recognized between closed and open numbering plans. A closed numbering plan, as found in North America, features fixed-length area codes and local numbers, while an open numbering plan has a variance in the length of the area code, local number, or both of a telephone number assigned to a subscriber line. The latter ...
CareFirst BlueCross BlueShield is a health insurance provider serving 3.5 million individuals and groups in Maryland and the Washington metropolitan area.It has dual headquarters in Baltimore, Maryland and Washington, D.C. [2] [3] It is a nonprofit organization and an independent licensee of the Blue Cross Blue Shield Association.