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Find the telephone dialling codes for different areas and services in the United Kingdom, based on the official standard maintained by Ofcom. Learn the history and changes of the UK phone code system, from the international prefix 00 to the area codes 01, 02, and 03.
Learn about the telephone number prefixes for reaching foreign countries or areas via international telecommunication networks. Find out the country code for Ghana (233) and other countries by zone and region.
Learn how to dial telephone numbers in the United Kingdom, including the country code +44 and the international access code 00. Find out the different formats, prefixes and numbering plans for geographic and non-geographic numbers.
Learn how to dial phone numbers in different European countries and territories, including country codes, national number lengths, and international access codes. Find out the European Union roaming and calling regulations and the harmonized service numbers.
Learn how to dial international phone numbers from Australia and other countries using different prefixes. Find out the meaning of 011, 0011, 000, and other codes in the list of international call prefixes.
A country code is a short alphanumeric identification code for countries and dependent areas. Learn about the different identification systems, such as ISO 3166, ITU, EU, FIFA, and more.
Find the mobile prefixes for different countries and territories, including Afghanistan, Åland, Algeria, American Samoa, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Aruba, Ascension Island, Australia, Austria, etc. The web page also shows the international calling codes, the size of NN (NSN), and the carriers for each prefix.
Learn how UK telephone numbers evolved from manual to automatic exchanges, from local codes to area codes, and from geographic to special services. The web page covers the origins, subscriber numbers, director system, and renumbering exercises of UK telephone numbers.