What are useful USSD codes for a SIM card in Thailand?

Here are the main USSD codes that will be useful when using a local Thai SIM card (especially popular for the operator Dtac, but they may differ for other operators):

• *102*9# – Find out your phone number.
• *101*9# – Check the current balance on your account.
• *101*1*9# – Check the remaining internet traffic in your package.
• *4000*9# – Get the login and password to access the Dtac operator's Wi-Fi network (if this option is included in your tariff).
• *113*30# – Extend the validity of the SIM card for 30 days. Cost: 2 baht.
• *113*90# – Extend the validity for 90 days. Cost: 6 baht.
• *113*180# – Extend the validity for 180 days. Cost: 12 baht.

Also, save important emergency service numbers for Thailand in your phone:

• 191 – Police.
• 1155 – Tourist police (they speak English).
• 199 – Fire service.
• 1554 – Emergency medical assistance.

Codes for extending validity are especially important if you are staying in the country for a long time and do not want your number to be blocked due to inactivity.

Find more practical information about life and communication in Thailand in our main article: Communication and Internet in Thailand.

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