Area Code 917 – Dobo

Overview of Area Code 917

Area code 917 is a geographic National Destination Code (NDC) within the Indonesian numbering plan, allocated to the Dobo region in the Maluku province. Dobo is the capital of the Aru Islands Regency, an archipelago located in the southeastern part of Maluku. The code serves the fixed-line telephone network (PSTN) for Dobo and its surrounding administrative areas.

Geographic Coverage and Administrative Jurisdiction

The 917 area code covers the Aru Islands Regency, with Dobo as the principal town and main economic hub. This regency is part of the Maluku province, which is known for its remote and dispersed island communities. The numbering area includes not only Dobo itself but also smaller settlements and villages across the Aru Islands, where fixed-line services are available. As a geographic code, it is tied to a specific physical location, and calls to this area are routed based on the destination's geographic location.

Dialing Formats and Instructions

• Local calls within Dobo and the Aru Islands: If you are calling a fixed-line number within the same area code, you typically dial only the local subscriber number. For example, if the local number is 12345, you would dial 12345.
• Calls from other parts of Indonesia: When dialing from another area code within Indonesia, you must use the trunk prefix 0 followed by the area code and the local number. For instance, to reach a Dobo number 12345 from Jakarta, you would dial 0917 12345.
• International calls from abroad: Callers from outside Indonesia should dial the international access prefix (e.g., 00 or +), followed by Indonesia's country code 62, then the area code without the leading zero, and the local subscriber number. For example, to call the same Dobo number from the United States, you would dial +62 917 12345.

Number Length and Formatting

Indonesian fixed-line numbers, including those in the 917 area code, typically consist of a varying number of digits. The local subscriber number length can range from 5 to 7 digits, depending on the capacity and demand within the region. When combined with the area code (without the leading zero), the total national significant number (NSN) length is usually between 8 and 10 digits. For international dialing, the NSN is preceded by the country code +62.

Overlay and Future Considerations

As of the latest updates, there is no overlay code for the Dobo area. The 917 code is the sole geographic code for this region. However, with the ongoing expansion of telecommunications infrastructure in Indonesia, it is possible that new numbering resources may be introduced in the future to meet growing demand. Users should always verify the current dialing procedures with their local service provider or the Indonesian telecommunications regulator (Ditjen PPI) if they encounter any issues.

Caller Instructions

• For local callers (within Indonesia): Always use the trunk prefix 0 when dialing from a different area code. Forgetting the 0 will result in an invalid call.
• For international callers: Ensure you have the correct international exit code for your country (e.g., 011 from the US, 00 from most European countries). Then dial 62 (Indonesia's country code), followed by 917 and the local number. Do not include the trunk prefix 0.

Understanding these dialing protocols ensures seamless connectivity to Dobo, a vital link for business and personal communication in this remote part of Indonesia.