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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.
Central and southeastern Ohio except Columbus: December 6, 1997: 220: April 22, 2015: 614: Columbus: October 1947: 380: February 27, 2016: 937: Southwestern part of Ohio including Dayton, Springfield, public parts of Wright-Patterson Air Force Base, and areas north and east of the Cincinnati metropolitan area: September 28, 1996: 326: March 8 ...
The regions shown in blue are in Ohio. Area codes 513 and 283 are telephone area codes in the North American Numbering Plan (NANP) for the southwest of the U.S. state of Ohio, including Cincinnati and surrounding cities, such as Forest Park, Hamilton, Lebanon, West Chester, Mason, Maineville, Middletown, Milford, Norwood, Oxford, Harrison, Cleves, Miamitown and Trenton.
Area code 440 was established on August 16, 1997, in a three-way split of area code 216, one of the original North American area codes, [1] to provide relief from central office prefix exhaustion from increasing popularity of cellular phones and population pressure. [2]
Two years after the merger, the new company joined Blue Cross and Blue Shield of Northwest Ohio to form Blue Cross and Blue Shield of Ohio. [8] In 1997, the company left the Blue Cross/Blue Shield Association and re-claimed the name of one of its predecessors, becoming the present day Medical Mutual of Ohio. [9]
As Highmark Blue Shield, it is available in 21 counties in Central Pennsylvania and the Lehigh Valley. It also has a presence in the border areas of eastern Ohio, and all of West Virginia through its subsidiary, Highmark Blue Cross Blue Shield West Virginia. Highmark acquired Blue Cross of Northeastern Pennsylvania, BCNEPA, in June 2015. [4] [5]
Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, but also sometimes referred to as "country dial-in codes", or historically "international subscriber dialing" (ISD) codes in the U.K., are telephone number dialing prefixes for reaching subscribers in foreign countries or areas via international telecommunication networks.
On July 21, 2023, the OMB delineated 11 combined statistical areas, 15 metropolitan statistical areas, and 29 micropolitan statistical areas in Ohio. [1] As of 2023, the largest of these is the Cleveland-Akron-Canton, OH CSA , comprising Cleveland and other cities in the northeast region of the state.