Area Code 818 – Mobile Network
The phone area code for Mobile Network is 818 (international format +62818). Browse local exchange codes (NXX) and carrier assignments below.
Overview of Indonesia's +62 818 Prefix
The +62 818 prefix is a non-geographic mobile network code assigned within Indonesia's national numbering plan. It is not tied to a specific city or region, but rather to mobile network operators (MNOs) and mobile virtual network operators (MVNOs) that have been allocated number blocks beginning with 818. This prefix is part of the country's closed numbering plan, meaning that all national calls, including local calls, require the full 10-digit subscriber number after the leading '0' trunk prefix.
Technical Format and Dialing
When dialing an 818 number domestically, callers must use the trunk prefix '0' followed by the prefix and subscriber number: 0818-XXXX-XXXX. Internationally, callers from outside Indonesia should dial +62 818-XXXX-XXXX (or the international access code of their country, e.g., 011 from the US, followed by 62 818...). The subscriber number is 8 digits long, making the total length of a national significant number (NSN) 10 digits (818 + 8 digits).
Carrier and Porting Information
The 818 prefix was originally allocated to PT Smartfren Telecom, a major CDMA and later LTE operator. Following the merger with PT Hutchison 3 Indonesia (Tri), the combined entity now operates under the Smartfren brand, and 818 numbers are actively used by Smartfren subscribers. However, due to mobile number portability (MNP) regulations in Indonesia, subscribers may retain their 818 numbers when switching to other operators, so the prefix does not guarantee the current network.
International Calling and SMS
For international voice calls and SMS, the 818 prefix functions like any other Indonesian mobile prefix. International carriers route calls based on the full E.164 number (+62 818...). SMS messages to 818 numbers should be addressed to the international format. When traveling abroad, Indonesian subscribers with 818 numbers can use their devices on roaming networks, and callers should continue to use the +62 international format.
Regulatory and Numbering Plan Context
The allocation and management of the 818 prefix fall under the authority of the Indonesian Ministry of Communication and Information Technology (Kominfo) and the Indonesian Telecommunication Regulatory Authority (BRTI). These bodies ensure that numbering resources are used efficiently and in accordance with ITU-T E.164 recommendations. As a non-geographic prefix, 818 numbers are not tied to any specific geographic area, making them suitable for nationwide mobile services.