Thailand Country Code
For data processing and communications and Thailand and it's dependent areas is represent by a Thailand Country code. Thailand country code is a short numeric geographical code (geocodes) developed by the ISO 3166-1 system. Thailand country code is freqently refered to as Thailand dialing codes or Thailand E.164 calling code.
Thailand Country Code is used when dialing to Thailand from outside Thailand. Thailand Country Code is however not used when dialing within Thailand.
To call Thailand from outside Thailand, you have to dial the your own country's International Direct Dialing prefix (IDD), Thailand Country Code, City/ Area Code, and then the subscriber telephone number as:
Your Countries International Direct Dialing Prefix (IDD) +66 (Thailand Country Code) + City Area Code + Number you wish to call.
When dialing from a mobile phone outside Thailand into Thailand, Dial '+' +66 (Thailand 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 Thailand)
Thailand International Direct Dialing prefix (or IDD) is used when dialing from the Thailand to outside the country (Refer to international dialing Thailand code or Thailand international access code). Do not use Thailand IDD when dialing within Thailand.
Thailand National Direct Dialing prefix (or NDD) is used when dialing to a destination within the Thailand (Refer to dialing Thailand code). Do not use Thailand National Direct Dialing prefix when dialing from outside Thailand into Thailand. Thailand NDD is only used as long distance dialing within the country.
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