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When three-digit codes share a common leading pair, the shared prefix is marked by an arrow, (↙ ) pointing down and left to the three-digit codes. Unassigned codes are denoted by a dash (—). Countries are identified by ISO 3166-1 alpha-2 country codes; codes for non-geographic services are denoted by two asterisks (**).
Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, or 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.
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.
Within the North American Numbering Plan (NANP), the administration defines standard and permissive dialing procedures, specifying the number of mandatory digits to be dialed for local calls within a single numbering plan area (NPA), as well as alternate, optional sequences, such as adding the prefix 1 before the telephone number.
As a result, prefixes were duplicated in both area codes, which counteracted much of the benefit of the division, with only 200 of 700 prefixes in area 612 transferring entirely to area 651. In less than two years, area code 612 again exhausted its supply of telephone numbers, and necessitated a three-way division in 2000, creating the new area ...
BCBS may refer to: The Basel Committee on Banking Supervision; The Blue Cross Blue Shield Association; Bishop Cotton Boys' School, in Bangalore, India; Bounds Check Bypass Store, a Spectre-NG class security vulnerability
Prefix Usage 1XX: Short codes 20: Non-geographic numbering 21 - 29: Geographic numbering (Francistown region) 30: Non-geographic numbering 31 - 39: Geographic numbering (Gaborone) 40: Non-geographic numbering 41 - 49: Geographic numbering (Palapye region) 50: Non-geographic numbering 51 - 59: Geographic numbering (south-east region) 60: Non ...
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.