Area Code 380 – Kupang

Overview of Area Code 380 (Kupang, Indonesia)

Area code 380 is the National Destination Code (NDC) assigned to the city of Kupang, the capital of East Nusa Tenggara (Nusa Tenggara Timur) province, located on the western tip of Timor Island. This geographic code is part of Indonesia's national numbering plan, which adheres to ITU-T E.164 recommendations. The code covers Kupang city and its surrounding regency, including districts such as Alak, Maulafa, Oebobo, Kelapa Lima, and Kota Raja. It also serves nearby towns like Soe and Kefamenanu in the broader Timor region, though these areas may have separate local codes.

Dialing Formats

For callers within Indonesia, the trunk prefix 0 is used before the area code. Thus, a local call to a fixed-line number in Kupang is dialed as 0380-XXXXXXX, where the subscriber number typically consists of 5 to 7 digits. For international callers, the country code for Indonesia is +62, and the trunk prefix is omitted. Therefore, the international format becomes +62 380-XXXXXXX. For example, a local number 1234567 would be dialed as 0380-1234567 domestically and +62 380-1234567 from abroad.

Geographic Coverage and Administrative Jurisdiction

Kupang is the largest city in West Timor and serves as a major administrative, economic, and educational hub for the province. The area code is managed by the Indonesian Telecommunication Regulatory Authority (BRTI) and is allocated to fixed-line operators, including Telkom Indonesia and other licensed PSTN providers. As a geographic code, it is tied to the physical location of the subscriber's line, and calls are routed over the public switched telephone network (PSTN) or via VoIP gateways.

Caller Instructions

For local callers within Kupang, dialing the full national format (0380-XXXXXXX) is always safe, even for calls within the same area code. For callers from other Indonesian cities, dial 0380-XXXXXXX. For international callers, dial your country's exit code (e.g., 011 from the US, 00 from many European countries), followed by 62, then 380, and the subscriber number. Note that mobile numbers in Indonesia have their own prefixes (e.g., 0811, 0812) and are not affected by this geographic code.

Overlay and Numbering Considerations

Currently, there is no overlay code for Kupang; the 380 code is the sole geographic code for the area. However, as demand for fixed-line services evolves, the regulator may introduce additional digits or overlay codes in the future. Always verify the number length when dialing, as some older lines may have fewer digits. For VoIP users, ensure that your service provider supports international dialing to Indonesia and that you use the correct format to avoid routing errors.