Area Code 78 – Kaohsiung
The phone area code for Kaohsiung is 78 (international format +88678). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Kaohsiung
Overview of Area Code 78 (Kaohsiung, Taiwan)
Area code 78 is a geographic National Destination Code (NDC) assigned to the Kaohsiung metropolitan region in southern Taiwan. Under the ITU-T E.164 international dialing standard, the full country calling code for Taiwan is +886, and the area code is used after the trunk prefix 0 when dialing domestically. Thus, a typical landline number in Kaohsiung is formatted as 0-7-XXXX-XXXX within Taiwan, and as +886-7-XXXX-XXXX from abroad. The leading 0 is dropped when dialing internationally.
Kaohsiung is Taiwan's second-largest city and a major industrial and port hub. The area code 7 (with the NDC being '7' in the international format) covers the entire Kaohsiung metropolitan area, including districts such as Lingya, Gushan, Cianjhen, and the surrounding administrative regions. The code is also used for the neighboring counties that have been merged into the Kaohsiung Special Municipality since 2010, such as Fengshan, Daliao, and Gangshan. This means that all fixed-line subscribers within this large administrative jurisdiction share the same area code, regardless of their specific district.
When dialing a Kaohsiung landline from another city in Taiwan, you must use the trunk prefix 0 followed by the area code 7 and then the local 8-digit subscriber number. For example, to call a Kaohsiung number 2345-6789 from Taipei, you would dial 07-2345-6789. From overseas, you would dial your country's international access code (e.g., 011 from the US, 00 from most European countries), then Taiwan's country code 886, followed by the area code 7 (without the leading zero) and the subscriber number: +886-7-2345-6789.
It is important to note that Taiwan's fixed-line numbering plan does not use overlay codes; the area code 7 is the sole geographic code for Kaohsiung. Mobile numbers in Taiwan, however, are non-geographic and begin with 09 (e.g., 0912-345-678), and they are not tied to any specific region. When calling a Taiwanese mobile from abroad, you would dial +886-9XX-XXX-XXX, omitting the leading zero.
For businesses and individuals, understanding the correct formatting is crucial for successful call routing. Whether you are a local resident, a business partner, or a tourist, always verify the number length: Kaohsiung fixed-line numbers consist of the area code (2 digits including the trunk prefix) plus an 8-digit subscriber number, totaling 10 digits when dialed domestically (including the leading 0) and 9 digits internationally (excluding the leading 0).