Area Code 731 – Lahat

Geographic Overview

The +62 731 area code is a geographic National Destination Code (NDC) assigned to the Lahat region in South Sumatra, Indonesia. This code covers the administrative city of Lahat and its surrounding regency (Kabupaten Lahat), which includes districts such as Pulau Pinang, Merapi, and Tanjung Sakti. The area is part of the larger Palembang metropolitan hinterland, though it maintains its own distinct local telephony infrastructure.

Dialing Formats

When dialing from within Indonesia (domestic call), you must use the trunk prefix 0 followed by the area code and the subscriber number. For example, to reach a landline in Lahat from Jakarta, you would dial: 0731 123456. The subscriber number typically consists of 5 to 7 digits, making the total national significant number (NSN) length between 8 and 10 digits when including the leading '0'.

For international callers, the format is: +62 731 123456 (drop the leading '0' of the area code). The plus sign represents the international access prefix, which varies by country (e.g., 011 from the US, 00 from most European countries).

Caller Instructions

• Local callers within Lahat: In many cases, local calls can be made using only the subscriber number without the area code, but this depends on the specific local exchange configuration. For clarity, it is recommended to always include the area code.
• Domestic callers from other Indonesian cities: Dial 0731 followed by the subscriber number.
• International callers: Dial your country's exit code, then 62 (Indonesia's country code), then 731, and then the subscriber number. For example, from the US: 011 62 731 123456.

Overlay and Numbering Plan Considerations

Currently, there is no overlay code for the Lahat area; the 731 code is exclusively used for this geographic region. However, as part of Indonesia's national numbering plan, the government has implemented mobile number portability (MNP) and is gradually migrating to an 8-digit subscriber number format for mobile services. For fixed lines, the subscriber number length may vary, but the area code remains unchanged.

It is important to note that the 731 code is only for fixed-line (PSTN) services. Mobile numbers in Indonesia always begin with 08 and are not tied to geographic regions. Therefore, if you receive a call from a number starting with +62 731, it is definitely a landline in the Lahat area.

For businesses or individuals in Lahat, having a local presence with a 731 number can enhance trust among local customers. When marketing internationally, always present the number in international format (+62 731...) to avoid confusion.