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Indonesia 📱 Mobile Network

Area Code 819 – Mobile Network

The phone area code for Mobile Network is 819 (international format +62819). Browse local exchange codes (NXX) and carrier assignments below.

Current Local Time
10:29:23
UTC • UTC +00:00
Full Dialing Format
+62819
Population N/A
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Admin Region Indonesia
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Elevation N/A
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GPS Coordinates N/A
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Overview of Indonesia Mobile Prefix 819

The Indonesian mobile prefix 819 is a non-geographic number range allocated to mobile network operators (MNOs) and mobile virtual network operators (MVNOs) within the national numbering plan of Indonesia. Unlike geographic area codes, prefix 819 does not correspond to a specific city or region; instead, it identifies a mobile subscription that can be used anywhere in the country. The full international dialing format for a number using this prefix is +62 819 XXXX XXXX, where the total subscriber number length is typically 8 to 10 digits after the country code (excluding the leading trunk prefix '0').

Technical Allocation and Numbering

Under the ITU-T E.164 recommendation, Indonesia's country code is +62. The national significant number (NSN) for mobile services consists of the national destination code (NDC), which is the prefix (e.g., 819), followed by the subscriber number (SN). For prefix 819, the NDC is 819, and the SN length varies by operator, but the total NSN is usually 10 to 11 digits. When dialing locally from within Indonesia, callers must include the trunk prefix '0' before the NDC, resulting in the format 0819 XXXX XXXX. From abroad, callers drop the '0' and dial +62 819 XXXX XXXX.

Operator and Portability Considerations

Prefix 819 is historically associated with Telkomsel, one of Indonesia's largest mobile operators, particularly for its Kartu Halo and simPATI prepaid services. However, due to mobile number portability (MNP) regulations implemented in Indonesia, subscribers may retain their 819 numbers when switching to other operators. Therefore, the prefix alone does not guarantee the current operator; it only indicates the original allocation. For SMS and voice routing, international carriers use the full E.164 number, and MNP databases ensure correct routing to the current network.

Dialing Instructions

  • Domestic calls (within Indonesia): Dial 0819 XXXX XXXX (including the leading '0').
  • International calls (from outside Indonesia): Dial your country's international access code (e.g., 00 or +), then 62 819 XXXX XXXX (omit the leading '0').
  • International SMS: Send to +62 819 XXXX XXXX.

Practical Example

If a subscriber's number is 0819 1234 5678, a caller in Jakarta would dial 0819 1234 5678. A caller in the United States would dial 011 62 819 1234 5678 or +62 819 1234 5678 from a mobile phone. This prefix is widely used for personal and business communications, supporting voice, SMS, and mobile data services.

❓ Frequently Asked Questions

What is the dialing format for an 819 number from abroad?
To call an Indonesian number starting with 819 from outside Indonesia, dial your country's exit code, then 62 (Indonesia's country code), then 819 followed by the subscriber number. For example, +62 819 XXXX XXXX. Do not include the leading '0' that is used for domestic calls.
Is 819 a geographic area code?
No, 819 is a mobile network prefix, not a geographic area code. It is allocated to mobile services and is not tied to any specific city or region in Indonesia.
Which mobile operator uses the 819 prefix?
Historically, the 819 prefix was assigned to Telkomsel, one of Indonesia's largest mobile operators. However, due to mobile number portability, subscribers may have moved to other operators while retaining their 819 numbers.
How many digits are in an 819 mobile number?
The total number of digits after the country code (+62) is typically 10 to 11, including the prefix 819. For example, +62 819 XXXX XXXX has 10 digits after +62 (819 plus 7 digits). Always check the exact number of digits when dialing.
Can I port my 819 number to another operator?
Yes, Indonesia supports mobile number portability (MNP). You can switch to another mobile operator while keeping your existing 819 number. The process is regulated by the government and typically requires a request to your new operator.