Singapore Country Code
For data processing and communications and Singapore and it's dependent areas is represent by a Singapore Country code. Singapore country code is a short numeric geographical code (geocodes) developed by the ISO 3166-1 system. Singapore country code is freqently refered to as Singapore dialing codes or Singapore E.164 calling code.
Singapore Country Code is used when dialing to Singapore from outside Singapore. Singapore Country Code is however not used when dialing within Singapore.
To call Singapore from outside Singapore, you have to dial the your own country's International Direct Dialing prefix (IDD), Singapore Country Code, City/ Area Code, and then the subscriber telephone number as:
Your Countries International Direct Dialing Prefix (IDD) +65 (Singapore Country Code) + City Area Code + Number you wish to call.
When dialing from a mobile phone outside Singapore into Singapore, Dial '+' +65 (Singapore 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 Singapore)
Singapore International Direct Dialing prefix (or IDD) is used when dialing from the Singapore to outside the country (Refer to international dialing Singapore code or Singapore international access code). Do not use Singapore IDD when dialing within Singapore.
Singapore National Direct Dialing prefix (or NDD) is used when dialing to a destination within the Singapore (Refer to dialing Singapore code). Do not use Singapore National Direct Dialing prefix when dialing from outside Singapore into Singapore. Singapore NDD is only used as long distance dialing within the country.
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