Area Code 536 – Palangkaraya/Kasongan

Overview of Area Code 536

Area code 536 is a geographic National Destination Code (NDC) within the Indonesian numbering plan, assigned to the region of Palangkaraya and Kasongan in Central Kalimantan (Kalimantan Tengah), on the island of Borneo. This code is part of the +62 country calling code, which is the international dialing prefix for Indonesia. The region is served by fixed-line PSTN (Public Switched Telephone Network) operators, and the code is used for landline numbers within this administrative area.

Geographic Coverage and Administrative Jurisdiction

The 536 area code covers the city of Palangkaraya, which is the capital of Central Kalimantan province, and the nearby town of Kasongan, located in Katingan Regency. Palangkaraya is a significant administrative and economic hub, while Kasongan is known for its traditional crafts. The code is allocated to the telecommunication service areas that include these urban and suburban districts, following the Indonesian national numbering plan administered by the Ministry of Communication and Information Technology (Kominfo) and the Indonesian Telecommunication Regulatory Authority (BRTI).

Dialing Formats and Number Structure

When calling a fixed-line number in Palangkaraya or Kasongan, the subscriber number typically consists of 5 to 7 digits after the area code. The complete international dialing format is +62 536 XXX XXXX (where X represents the local subscriber digits). For example, a local number might be +62 536 12345 or +62 536 1234567, depending on the specific exchange and the number of digits assigned. It is important to note that the area code is not optional when dialing from outside the local calling area, and the leading '0' is used for domestic long-distance calls within Indonesia (e.g., 0 536 12345).

Calling Instructions for Local and International Callers

For callers within Indonesia but outside the 536 area, you must dial the trunk prefix '0' followed by the area code and the local number: 0 536 XXX XXXX. For international callers, the process is to dial your country's international access code (e.g., 011 from the US, 00 from most European countries), then Indonesia's country code 62, followed by the area code 536 (without the leading zero) and the local number: +62 536 XXX XXXX. Local calls within the same area code may be dialed using only the subscriber number, depending on the operator's local dialing rules, but it is always safe to include the area code for clarity.

Overlay Considerations and Numbering Plan

Currently, there is no overlay code for the 536 area; the region uses a single area code. However, as demand for telecommunication services grows, the Indonesian numbering plan may introduce additional digits or overlay codes in the future. For now, the 536 code remains the sole geographic identifier for fixed-line services in Palangkaraya and Kasongan. When dialing, always verify the number length, as some local numbers may have fewer digits, especially in smaller exchanges. For VoIP or mobile calls, the same international format applies, but mobile numbers in Indonesia use different prefixes (e.g., 081x) and are not tied to geographic areas.