Area Code 513 – Muara Teweh

Overview of Area Code 513

Area code 513 is a geographic National Destination Code (NDC) within the Indonesian numbering plan, assigned to the region of Muara Teweh in North Barito Regency, Central Kalimantan (Kalimantan Tengah). This code is part of the +62 country calling code, following ITU-T E.164 standards. It serves the administrative capital of North Barito and its surrounding districts, including areas along the Barito River. The code is used for fixed-line PSTN services, and its geographic nature means the number is tied to a physical location.

Geographic Coverage and Administrative Jurisdiction

Muara Teweh is the capital of Kabupaten Barito Utara (North Barito Regency). The 513 area code covers the city itself and nearby settlements within the regency, such as Teweh Tengah, Teweh Baru, and Teweh Selatan districts. As a geographic code, it is allocated exclusively for wireline services in this region, and it is not used for mobile networks, which have their own non-geographic prefixes (e.g., 081x, 082x, etc.).

Dialing Formats

For callers within Indonesia (domestic calls), the number is dialed as 0-513-XXXXXXX, where '0' is the trunk prefix, '513' is the area code, and the subscriber number typically consists of 5 to 7 digits. For example, a local number might be 0513 12345. When calling from outside Indonesia, the international format is +62 513 XXXXXXX (or +62 513-XXXXXXX), omitting the leading '0'. For instance, to call a Muara Teweh landline from abroad, you would dial +62 513 1234567.

Caller Instructions

Local callers within Muara Teweh can often dial the subscriber number directly without the area code, depending on the local network configuration. However, for clarity and to avoid misdialing, it is recommended to use the full domestic format. Domestic long-distance callers from other Indonesian cities must dial 0513 followed by the subscriber number. International callers should replace the trunk prefix '0' with the country code '+62', then dial '513' and the subscriber number. Always check with your service provider for any special requirements, especially when calling from VoIP or mobile networks.

Overlay and Numbering Considerations

As of the latest updates, there is no overlay code for 513, meaning the area code is unique to this region. However, with the growth of telecommunication services, number portability and new assignments are managed by the Indonesian Telecommunication Regulatory Authority (BRTI). Subscriber numbers within this code may vary in length, but the total length of the national significant number (NSN) after the trunk prefix is typically 8 to 10 digits, including the area code. For international dialing, the full E.164 number should not exceed 15 digits.

For businesses and residents in Muara Teweh, having a local geographic number enhances local presence and trust. When contacting local services, always verify the correct number format to ensure successful connection.