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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. [1] . Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing.
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
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.
- 1
- 011
- +1 NXX NXX-XXXX
E.164 is an international standard ( ITU-T Recommendation), titled The international public telecommunication numbering plan, that defines a numbering plan for the worldwide public switched telephone network (PSTN) and some other data networks . E.164 defines a general format for international telephone numbers.
- June 2020
- 1984
- In force
- ITU-T
Dec 28, 2020 · What is the North American Numbering Plan (NANP)? The North American Numbering Plan — also known as the NANP — is a telephone numbering plan that serves 20 North American countries (listed below). The NANP region mainly covers the US and its territories, Canada, and some Caribbean countries.
- What is the North American Numbering Plan?The North American Numbering Plan (NANP) is a telephone numbering plan that serves 20 North American countries and exists to simplify and facilitat...
- What Countries Use the North American Numbering Plan?The NANP mainly covers the US and its territories, Canada, and some Caribbean countries.
- Why do the US and Canada Have the Same Country Code?All North American countries included in the North American Numbering Plan are assigned the country code (+1), including the US and Canada.
- What is a North American Phone Number Example?An example of a North American phone number is +1(469) 123-4567. It uses the format: +1 (area code) xxx-xxxx.
Depending on the nation or region, it may also be referred to as a numbering plan area, subscriber trunk dialling code, national destination code or routing code. country code A country code is used to reach the particular telephone system for each nation or special service. World Zone The World Zone is the first digit of a country code. This ...
ITU-T E.164: The international public telecommunication numbering plan This Recommendation provides the number structure and functionality for the three categories of numbers used for international public telecommunications – these are geographic areas, global services and networks. For each of the
