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A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing.
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 .
Telephone numbers in Cyprus follow a closed telephone numbering plan which was adopted on 1 December 2001. As a result, for landline phone numbers the digit 2 followed by the old area code was affixed to the subscriber number and for mobile phones 9 was affixed to the phone number. The plan is also used in Akrotiri and Dhekelia.
Feb 19, 2024 · This article will explain global telephone numbering plans, the differences between open and closed ones, and the common ways to format telephone numbers across various countries. Closed Versus Open Numbering Plans. Closed numbering plans contain a fixed number of digits for each telephone number.
- Luke Genoyer
[1] The technology steadily advanced. Starting around the turn of the century, the dial telephone allowed users to place calls themselves without operator assistance. By mid-century, mobile radio telephone service became available to free users from fixed locations in some cities.
A closed dialling plan refers to a national requirement to use all digits of a national number (often including a trunk prefix) to place a call, whether local or long distance. The current systems in France (as of October 1996) and Belgium (as of January 2000) are examples of closed dialling plans.
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