ATIS Telecom Glossary
Tuesday, October 21, 2014

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World Numbering Plan
A plan created by the International Telegraph and Telephone Consultative Committee (CCITT--now, the ITU-T) that provides each telephone subscriber with a unique number. Each world telephone number consists of a country code followed by the national number. By international agreement, the number of digits in the country code plus national number is limited to a total of 15 digits. [After T1.104-1991]

 

 

 

 

 

 

 

 

 

 



 
These definitions were prepared by ATIS Committee PRQC
 
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