Area Code 543 – Tanah Grogot

Overview of Area Code 543 (Tanah Grogot)

Area code 543 is a geographic National Destination Code (NDC) assigned to the region of Tanah Grogot, the capital of the Paser Regency in East Kalimantan, Indonesia. This code is part of the Indonesian public switched telephone network (PSTN) and is used for fixed-line services within this administrative area. The region is situated on the island of Borneo, and its telecommunications infrastructure is managed by Indonesian fixed-line operators under the regulatory oversight of the Ministry of Communication and Information Technology.

Geographic Coverage and Jurisdiction

The 543 area code covers Tanah Grogot and its surrounding districts within Paser Regency. Key towns and villages served include Batu Sopang, Kuaro, Long Ikis, and Muara Komam. The area is characterized by a mix of residential, commercial, and government services, with the local economy driven by coal mining, agriculture, and forestry. The code is geographically allocated, meaning that the number is tied to a physical location, and calls are routed based on the destination's exchange.

Dialing Formats

When calling a fixed-line number in Tanah Grogot, the dialing format depends on the caller's location:

• Local calls (within the same area code): Typically, you dial only the subscriber number (e.g., XXXXXXX). However, in some Indonesian regions, local calls may still require the area code, so it is advisable to check with the local provider.
• Domestic long-distance calls (from other Indonesian area codes): Dial the trunk prefix 0, followed by the area code 543, and then the subscriber number. For example, to call a Tanah Grogot number from Jakarta, you would dial: 0 543 XXX XXXX.
• International calls (from outside Indonesia): 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 subscriber number. For instance, from the United States, you would dial: 011 62 543 XXX XXXX or +62 543 XXX XXXX.

Numbering Structure

Fixed-line numbers in the 543 area code typically have a total length of 8 to 10 digits, including the area code. The subscriber number is usually 5 to 7 digits long. The exact length may vary depending on the operator and the specific exchange. As part of Indonesia's national numbering plan, the area code 543 is not portable; it remains associated with the geographic region.

Overlay and Future Considerations

As of the latest updates, there is no overlay area code for Tanah Grogot. However, with the ongoing expansion of fiber-optic networks and the migration towards VoIP, the distinction between geographic and non-geographic numbers is becoming less relevant. Nevertheless, for the time being, 543 remains a geographic code, and callers should be aware that tariffs for fixed-line calls may vary based on distance and the operator's pricing policy.

For foreign callers, it is important to note that Indonesian fixed-line numbers are not typically reachable via SMS, and international calling rates apply. Always check with your service provider for the most current rates and dialing procedures.