Country codes are a component of the international telephone numbering plan. By convention, international telephone numbers are represented by prefixing the country code with a plus sign. Member countries of the North American Numbering Plan are assigned three-digit area codes under the common country prefix 1.
About List of country calling codes in brief
Country calling codes or country dial-in codes are telephone number prefixes for reaching telephone subscribers in the networks of the member countries or regions of the International Telecommunication Union. Country codes are a component of the international telephone numbering plan, and are necessary only when dialing a telephone number to establish a call to another country.
By convention, international telephone numbers are represented by prefixing the country code with a plus sign. Member countries of the North American Numbering Plan are assigned three-digit area codes under the common country prefix 1, shown in the format +1 XXX. In Antarctica, dialing is dependent on the parent country of each base.
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This page is based on the article List of country calling codes published in Wikipedia (as of Dec. 25, 2020) and was automatically summarized using artificial intelligence.
