Area Code 518 – Kotabaru/Batulicin
The phone area code for Kotabaru/Batulicin is 518 (international format +62518). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Kotabaru/Batulicin
Overview of Area Code 518
Area code 518 is a geographic National Destination Code (NDC) assigned to the Kotabaru and Batulicin regions in the Indonesian numbering plan, under the international country calling code +62. These areas are located in the southeastern part of South Kalimantan Province on the island of Borneo. Kotabaru serves as the capital of Kotabaru Regency, while Batulicin is a major port town in Tanah Bumbu Regency, situated near the coast. The code covers the administrative districts of Kotabaru, Batulicin, and surrounding settlements.
Dialing Formats
When calling a fixed-line number in this region from within Indonesia, subscribers must dial the trunk prefix 0 followed by the area code and the subscriber number. For example, a local number might be formatted as:
- National dialing (within Indonesia): 0-518-XXXXXXX
- International dialing (from abroad): +62-518-XXXXXXX
Subscriber numbers in this area typically consist of 5 to 7 digits, depending on the specific exchange and the historical allocation. The total length of a national significant number (NSN) for Indonesia is usually 9 to 12 digits, including the leading '0' for domestic calls. For international callers, the leading '0' is omitted, and the country code +62 is used.
Geographic Coverage and Administration
The 518 area code is administered under the Indonesian Telecommunication Regulatory Authority (BRTI) and is allocated to fixed-line services, including PSTN and some fixed wireless access (FWA) networks. The region is part of the larger South Kalimantan telecommunication region, which also includes other area codes such as 511 for Banjarmasin and 512 for Pelaihari. The code is geographically specific, meaning that the call routing is based on the physical location of the subscriber's line.
Caller Instructions
- Local callers within the 518 area can often dial just the subscriber number without the area code, depending on the local network configuration. However, for clarity and to avoid misdialing, it is recommended to use the full national format.
- Callers from other parts of Indonesia must dial 0-518-XXXXXXX to reach a number in Kotabaru or Batulicin.
- International callers should dial their international exit code (e.g., 00 from most countries, or + from mobile phones) followed by 62 518 XXXXXXX.
Overlays and Numbering Changes
As of the latest updates, there is no overlay code for the 518 area. The numbering plan is stable, and no major changes have been announced. However, with the growth of telecommunication services, subscribers may experience changes in local dialing procedures, especially with the introduction of VoIP and mobile services. Always verify the number with the recipient if you are unsure about the correct format.