Area Code 815 – Mobile Network

Overview of Indonesia's +62 815 Prefix

The +62 815 prefix is a non-geographic mobile network code assigned to cellular services in Indonesia. Unlike geographic area codes, which correspond to specific cities or regions, the 815 prefix is used by mobile network operators (MNOs) and mobile virtual network operators (MVNOs) to provide nationwide wireless communication services. This prefix is part of the Indonesian National Numbering Plan, which adheres to the ITU-T E.164 international numbering standard.

Technical Specifications and Formatting

Numbers under the +62 815 prefix typically have a total length of 10 to 12 digits when dialed internationally, including the country code but excluding the leading trunk prefix '0'. The domestic format is '0815-XXXX-XXXX', while the international format is '+62 815-XXXX-XXXX'. The exact number of digits after the prefix may vary depending on the operator's allocation, but the structure remains consistent for mobile services.

This prefix is location-independent, meaning that a subscriber can use the same number across all of Indonesia without any geographic restrictions. Calls to 815 numbers are routed through the mobile network, and the caller is not required to know the subscriber's current location.

Dialing Instructions

• Domestic calls (within Indonesia): Dial the trunk prefix '0' followed by the subscriber number. For example, to call a number 0815-1234-5678, dial 0815-1234-5678.
• International calls (from outside Indonesia): Dial the international access code (e.g., 00 or +), then Indonesia's country code 62, followed by the subscriber number without the leading '0'. For example, +62 815-1234-5678.
• Receiving calls: Callers from abroad must use the +62 format; callers within Indonesia may use either the 0-prefixed format or the +62 format, depending on their carrier's settings.

Mobile Network Operators and Porting

The 815 prefix is shared among several mobile operators, including major providers like Telkomsel, Indosat Ooredoo Hutchison, and XL Axiata, as well as smaller MVNOs. Due to mobile number portability (MNP), a subscriber may retain their 815 number even when switching operators. Therefore, the prefix does not definitively indicate the current operator, but it does confirm that the number is a mobile service.

International Usage and SMS

When sending SMS or MMS to an 815 number from abroad, the sender must use the international format (+62 815...). For voice calls, standard international rates apply, and the call is terminated on the Indonesian mobile network. Some services may have restrictions on premium or short-code interactions, but standard voice and SMS are universally supported.