By The Mid-20th Century, The Growth Of The Development Of A More Sophisticated System. In 1947, The North American Numbering Plan (Nanp) Was Established, Introducing Area Codes. These Three-digit Codes Allowed For More Efficient Call Routing And Increased The Capacity Of The Telephone Network. Area Codes Were Initially Assigned Based On The Population And Anticipated Growth Of Regions.
Structure Of Telephone Numbers
Today, Telephone Numbers Are Standardized UAE Phone Number Internationally. The International Telecommunication Union (Itu) Defines The Format For Telephone Numbers Through Its E.164 Recommendation. According To This Standard, Telephone Numbers Can Have A Maximum Of 15 Digits, Including A Country Code, Area Code, And Local Number.
Country Code The International Format
The Country Code Is A One- To Three-digit Number That Identifies A Specific Country Or Territory. For Example, The Country Code For The United States Afghanistan Phone Number List And Canada Is +1, While The Country Code For The United Kingdom Is.