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Independent State in the World Paris FR 1950-01-01 Includes Corsica 1 428 42801 East Germany Europe East Germany Independent State in the World DD 1950-01-01 1990-09-30 Retired. Area is now combined with retired WAC 430, under WAC 429 1 429 42901 Germany Europe West Germany Independent State in the World Berlin DE 1950-01-01 1990-09-30
Calling codes in Europe. Telephone numbers in Europe are managed by the national telecommunications authorities of each country. Most country codes start with 3 and 4, but some countries that by the Copenhagen criteria are considered part of Europe have country codes starting on numbers most common outside of Europe (e.g. Faroe Islands of Denmark have a code starting on number 2, which is most ...
Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]
8-digit numbering took place in the years 1986/87, so that the area code had to be used every time, also for local calls. [6] On 2. September 1986 in the 01, 02, 03 areas (Zealand, Lolland-Falster, Bornholm and Møn). On 15. May 1987 in the 09 area (Funen and surrounding islands).
Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.
When dialing a telephone number, the area code may have to be preceded by a trunk prefix or national access code for domestic calls, and for international calls by the international access code and country code. Area codes are often quoted by including the national access code. For example, a number in London may be listed as 020 7946 0321.
Due to Mobile number portability, the code is not an accurate way to determine the provider of a mobile phone number. The providers assign only in exceptional cases (special sort of custom numbers, more expensive) non-existing numbers with a different prefix, and this is handled similarly to porting an existing number from the desired network.
Mobile phones use geographic area codes. Exchanges may service on mobile devices; local numbers are portable between wired and wireless carriers. While area code 600 has been established as a non-geographic code that can be used by mobile phones, the only significant mobile usage has been for satellite phone service in remote regions. Cape ...