When dialing an international number, you need to dial the country code followed by the area code and phone number. The country code for Indonesia is 62.
To call a landline in Indonesia, dial 011-62-area code-phone number.
To call a mobile phone in Indonesia, dial 011-62-mobile phone number.
If you need to dial a number in Indonesia with a country code other than 62, you can use a website like www.countrycallingcodes.com to find the correct dialing code.