Country calling code is a complete guide to call to any part of the world. It is a wonderful medium to reach friends, family and dear ones staying in different parts of the globe. For long distance calls the country calling codes are useful, they are telephone dialing prefixes given for the listed member countries of ITU (International Telecommunication Union). With country calling codes it has become way easier to call and communicate at any given time.
These prefixes allow (IDD) international direct dialing or popularly known as ISD codes (International subscriber dialing), the distinction is done by the ITU-T in standards E.123 and E.164.
Before the national telephone number country code should be dialed, it is the important module of the international telephone numbering arrangement. To begin a call abroad country code is necessary, it is represented by + symbol before the prefixed country code indicating the dialer or subscriber to dial the specific country code. For different countries ITU has given prefix for ex: for North Americans according to the numbering plan it is 011 where as for most Asian, African and European countries it is 00. Mobile users may insert the prefixes with the +symbol along with the dialed number automatically.