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The International Telecommunication Union (ITU) has established a comprehensive numbering plan, designated E.164, for uniform interoperability of the networks of its member state or regional administrations. It is an open numbering plan, however, imposing a maximum length of 15 digits to telephone numbers.
- Telephone numbering plan - Simple English Wikipedia, the free encyclopedia
A telephone numbering plan is a system used in...
- Telephone numbering plan - Simple English Wikipedia, the free encyclopedia
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 .
In telecommunication, a dial plan (or dialing plan) establishes the permitted sequences of digits dialed by telephone subscriber and the manner in which a telephone switch interprets these digits within the definitions of the prevailing telephone numbering plan. [1]
Overview. Germany has an open telephone numbering plan. Before 2010, area codes and subscriber telephone numbers had no fixed size, meaning that some subscriber numbers may be as short as two digits.
German telephone numbers have no fixed length for area code and subscriber number (an open numbering plan). There are many ways to format a telephone number in Germany. The most prominent is DIN 5008 but the international format E.123 and Microsoft's canonical address format are also very common.
The Soviet Union used a four-level open numbering plan. The long-distance prefix was 8. One could call a local number without the code. Local numbers usually consisted of 5-7 digits, with seven-digit numbers only occurring in Moscow (since 1968), Leningrad (since 1976) and Kiev (since 1981).
