Area Code 779 – Tanjungbatu

Overview of Area Code 779

Area code 779 is a geographic National Destination Code (NDC) assigned to the town of Tanjungbatu in the Riau Islands Province of Indonesia. It serves the administrative district of Kecamatan Tanjungbatu, which is located on Kundur Island, part of the Karimun Regency. This code is used for fixed-line (PSTN) services within this specific locality.

Geographic Coverage and Dialing

The 779 code covers the urban and suburban areas of Tanjungbatu, including the surrounding villages and settlements on Kundur Island. It does not extend to other islands in the Riau Archipelago, such as Batam (which uses 778) or Tanjung Pinang (which uses 771). For local calls within the same area code, subscribers typically dial only the local subscriber number, which usually consists of 5 to 7 digits. However, for calls from outside the area but still within Indonesia, callers must dial the trunk prefix 0, followed by the area code and the subscriber number. For example, to call a fixed line in Tanjungbatu from Jakarta, you would dial: 0 779 XXXX XXX.

International Dialing Format

For international callers, the correct format is to dial the international access prefix (e.g., 00 from most countries), followed by Indonesia's country code +62, then the area code without the leading trunk prefix, and finally the subscriber number. Thus, a call from the United States would be: 011 62 779 XXXX XXX (or +62 779 XXXX XXX when using a mobile phone). It is crucial to omit the initial '0' of the area code when dialing from abroad.

Numbering Plan and Overlays

Indonesia's numbering plan follows ITU-T E.164 recommendations. The NDC length for geographic codes in Indonesia is typically 2 to 4 digits, and 779 is a three-digit code. The subscriber number length varies, but the total length of the national significant number (NSN) is usually 9 to 11 digits. As of now, there is no overlay code for Tanjungbatu; the 779 code is exclusively used for this region. However, due to the increasing demand for telecommunication services, it is advisable to verify the current numbering plan with the Indonesian regulatory authority (SDPPI) for any future changes.

Caller Instructions

• Local callers within Tanjungbatu: dial the subscriber number directly (without the area code).
• Domestic callers from other Indonesian regions: dial 0 779 followed by the subscriber number.
• International callers: dial your country's exit code, then 62 779, and the subscriber number (omit the leading '0').

Always confirm the subscriber number length with the called party, as it may vary. For any discrepancies, contact your service provider.