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The North American Numbering Plan ( NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the telephone country code 1. Some North American countries, most notably Mexico, do not participate with the NANP.
Area codes 809, 829, and 849 are telephone area codes in the North American Numbering Plan (NANP) for the Dominican Republic.Like all NANP members, the Dominican Republic uses country code 1, and has similar dialing procedures for dialing the 10-digit national telephone numbers, which consist of the area code, a three-digit central office code, and a four-digit line number.
IEEE 829-2008, also known as the 829 Standard for Software and System Test Documentation, was an IEEEstandard that specified the form of a set of documents for use in eight defined stages of software testingand system testing, each stage potentially producing its own separate type of document. The standard specified the format of these ...
Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs ...
A test plan is usually prepared by or with significant input from test engineers. [1] Depending on the product and the responsibility of the organization to which the test plan applies, a test plan may include a strategy for one or more of the following: Design verification or compliance test – to be performed during the development or ...
An area code overlay is a numbering plan area (NPA) in the North American Numbering Plan (NANP) that has multiple area codes assigned. Overlay complexes are used to add central office prefixes in an NPA to increase the number of available telephone numbers .
The expansion of the North American Numbering Plan (NANP) is the anticipated requirement for providing more telephone numbers to accommodate future needs beyond the pool of ten-digit telephone numbers. Ten-digit telephone numbers have been in use in the United States and Canada in long-distance telephone service since the 1950s.
A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. [1] Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbering plans are defined in each of ...