Area Code 718 – Koba/Toboali

Overview of Area Code +62 718

Area code 718 is a geographic National Destination Code (NDC) within the Indonesian numbering plan, assigned to the Koba and Toboali region on Bangka Island, part of the Bangka Belitung Islands Province. This code serves the administrative districts of Central Bangka (with its capital Koba) and South Bangka (with its capital Toboali), covering towns such as Sungai Selan, Simpang Katis, Pangkalan Baru, and Air Gegas. Geographically, it is located on the southeastern coast of Bangka Island, opposite the island of Sumatra.

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 718, and then the subscriber number. For example, a local number might be formatted as:

• Local dialing (within the same area): 718 XXX XXX (if 7-digit subscriber numbers are used) or 718 XX XXX (for 6-digit numbers).
• National long-distance dialing (from other Indonesian cities): 0 718 XXX XXX.
• International dialing (from abroad): +62 718 XXX XXX (drop the leading 0).

For instance, a typical number in Koba could be +62 718 123 456 when called from overseas, while a domestic caller outside the area would dial 0718 123 456.

Regulatory and Technical Notes

Area code 718 is part of the closed numbering plan of Indonesia, where the total length of a national significant number (NSN) is typically 9 to 11 digits, including the area code. The subscriber number length within this code may vary, but the complete NSN (area code + subscriber number) usually totals 10 or 11 digits. As with other geographic codes in Indonesia, this code is allocated to fixed-line services, including PSTN and fixed wireless access (FWA) networks. Since the implementation of mobile number portability (MNP) in Indonesia, subscribers may retain their mobile numbers when switching operators, but fixed-line numbers remain tied to their geographic location.

For callers from outside Indonesia, the international access code (e.g., 011 from the US, 00 from most European countries) is used, followed by Indonesia's country code 62, then the area code without the leading zero. It is important to note that calls to this region are subject to international tariffs, and the exact cost depends on the caller's carrier.

In summary, area code 718 serves a specific geographic region on Bangka Island, and understanding the correct dialing format ensures successful connectivity for both domestic and international callers.