What is the Phone Number Format of Indonesia?

An Indonesian phone number consists of the country code, area code, trunk code, mobile prefix, and subscriber number. Each prefix plays a unique role, whether you're calling the country domestically or internationally.

Indonesia's country code is 62. This code is required when calling Indonesia from overseas. However, when dialing locally, you shouldn’t need to worry about entering the country code.

The trunk code for Indonesia is “0” and is used when dialing locally within Indonesia. It is placed before the area code. However, when making an international call to Indonesia, you can omit the trunk code and replace it with your country’s exit code, followed by the Indonesian country code.

Area codes represent the specific geographical location in the country. In Indonesia, area codes are three to four-digit long and are assigned according to cities and regions.

Below are some of the popular area codes of Indonesia alongside their respective cities:

In Indonesia, mobile phone numbers start with four-digit prefixes that begin with "08XX". Here, the last two digits of this prefix (the "XX") vary depending on the mobile provider. These prefixes help identify which network or service the number belongs to and come before the rest of the phone number.

Here’s the list of some of the popular Indonesian telecom providers, alongside their mobile prefixes:

The subscriber number in Indonesia consists of 7 to 8 digits, and its length depends on whether the phone is a landline or a mobile number. These numbers are unique numbers assigned to individuals or business telephone owners.

The local phone number structure in Indonesia consists of the trunk code, area code, and the local subscriber number.

Here’s how to format an Indonesian phone number when calling domestically:

1. Dial ‘0’, the trunk code.
2. Dial the area code or mobile prefix.
3. Dial the local subscriber number.

Examples of Indonesia’s phone number format for local calling:

For Landline Number: 031 987 6543

• 0 - Trunk Code
• 31 - Area Code of Surabaya
• 987 6543 - Subscriber’s Landline Number

For Mobile Number: 0812 3456 7890

• 0 - Trunk Code
• 812 - Mobile Service Provider Prefix
• 3456 7890 - Subscriber’s Mobile Number

For Toll-Free Number: 0800 1 123 456

• 0 - Trunk Code
• 800 - Toll-free Prefix
• 1 - Code for a Free Call (business bears the cost)
• 123 456 - Subscriber Number

The international phone number format for Indonesia includes the exit code, country code, area code or mobile prefix, followed by the subscriber number.

Here’s how to call Indonesia from abroad:

1. Dial the exit code of the country you’re dialing from.
2. Dial the Indonesian country code, i.e., 62.
3. Dial the area code or mobile prefix.
4. Dial the remaining subscriber number.

Examples of an Indonesian phone number format for international calls:

For Landline Number: 011 62 31 987 6547 (when calling from the US)

• 011 - Exit Code of the United States
• 62 - Country Code of Indonesia
• 31 - Area Code
• 987 6547 - Subscriber Landline Number

For Mobile Number: 011 62 81 3456 7890 (when calling from the US)

• 011 - Exit Code of the United States
• 62 - Country Code of Indonesia
• 81 - Mobile Prefix
• 3456 7890 - Subscriber Mobile Number

In Indonesia, several short phone numbers like 112, 110, and 118 offer fast access to emergency services. These helpline numbers are used for emergency services such as disaster relief, police, ambulance, or search and rescue. They are free to call and operate around the clock to offer support whenever needed.

Here are some primary helpline numbers of Indonesia:

When calling Indonesia, common mistakes include dialing the wrong format and forgetting to remove the leading zero from local numbers. Additionally, most of the time, people also forget to consider the time zone differences, which leads to calling at inconvenient hours and unanswered calls.

Indonesian phone numbers' structure includes a trunk code (a leading zero) used for local calls. However, when calling from abroad, this zero should be left out. Many people make the mistake of including it in international calls, which leads to the wrong phone number format and failed calls. Always remember to omit the trunk code when dialing from outside Indonesia.

A common mistake is not following the correct dialing format for international calls. People often forget to include the exit code and country code, or place them in the wrong order when calling from abroad. To avoid this, use Indonesia’s proper phone number format: exit code + country code (+62) + area code or mobile prefix (without the leading zero) + subscriber number.

Indonesia follows multiple time zones, and the local time may be several hours ahead or behind the caller’s home country. Calling without considering this can mean you reach someone at an inconvenient hour, and the call may go unanswered. So, always check the time difference and call during the recipient’s appropriate hours.

It’s important to follow the Indonesian phone number format to call someone in the country without any hassle. For local calls, dial the trunk code (0), area or mobile code, and the subscriber number. For international calls, dial your country’s exit code, followed by Indonesia’s country code, area or mobile code, and the subscriber number.

But even when you follow the right format, calls can still fail sometimes. This often happens because of a weak network, not the number itself. In such cases, using a virtual phone number from Calilio can help. We offer a strong and stable connection, so your calls go through without problems. Simply get an Indonesian virtual phone number and start calling the country at local rates.