India Country Code
For data processing and communications and India and it's dependent areas is represent by a India Country code. India country code is a short numeric geographical code (geocodes) developed by the ISO 3166-1 system. India country code is freqently refered to as India dialing codes or India E.164 calling code.
India Country Code is used when dialing to India from outside India. India Country Code is however not used when dialing within India.
To call India from outside India, you have to dial the your own country's International Direct Dialing prefix (IDD), India Country Code, City/ Area Code, and then the subscriber telephone number as:
Your Countries International Direct Dialing Prefix (IDD) +91 (India Country Code) + City Area Code + Number you wish to call.
When dialing from a mobile phone outside India into India, Dial '+' +91 (India Country Code) + City Area Code + Number you wish to call. (The "+" can be reached by holding down the "0" key until it turns into a "+". The "+" is universal prefix for all international mobile telephone calls including India)
India International Direct Dialing prefix (or IDD) is used when dialing from the India to outside the country (Refer to international dialing India code or India international access code). Do not use India IDD when dialing within India.
India National Direct Dialing prefix (or NDD) is used when dialing to a destination within the India (Refer to dialing India code). Do not use India National Direct Dialing prefix when dialing from outside India into India. India NDD is only used as long distance dialing within the country.
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