Area Code 47 – Taichung/Changhua

Overview of Area Code +886 47

Area code 47 is a geographic National Destination Code (NDC) within the Taiwan telephone numbering plan, assigned under the international country calling code +886. It serves the central-western region of Taiwan, primarily covering Taichung City and Changhua County. This code is used for fixed-line (PSTN) services, including residential, business, and government lines. The numbering area is administered by the National Communications Commission (NCC) of Taiwan, which oversees the allocation and management of all telecommunication numbering resources in accordance with ITU-T E.164 recommendations.

Geographic Coverage and Dialing Formats

The +886 47 area code encompasses a densely populated corridor that includes Taichung, the second-largest city in Taiwan, and the surrounding Changhua County. Major districts served include Central, West, North, South, and Beitun in Taichung, as well as Changhua City and nearby townships. For local callers within the same area code, the standard dialing format is to omit the trunk prefix and area code, dialing only the 7-digit subscriber number (e.g., 1234567). For calls from other areas within Taiwan, callers must dial the trunk prefix 0 followed by the area code and subscriber number: 04 1234567. International callers should dial +886 4 1234567 (or 011 886 4 1234567 from the US/Canada). Note that the leading '0' is a domestic trunk prefix and is not included when dialing from abroad.

Number Structure and Overlay Considerations

Subscriber numbers within the +886 47 area code are 7 digits long, making the total national significant number (NSN) length 9 digits (including the area code). Taiwan has implemented several overlay plans in major cities to increase numbering capacity. In the Taichung/Changhua region, the area code 47 is part of the larger 04 numbering area, which also includes other NDCs such as 42, 43, 45, and 46. This means that local calls within the 04 region may require 10-digit dialing (including the area code) in some overlay scenarios. However, for the specific NDC 47, the traditional 7-digit local dialing remains common for calls within the same exchange. Users should verify with their service provider if they are in an overlay zone.

Caller Instructions

For local callers: If you are dialing a number within the same geographic area (same NDC), you may dial only the 7-digit subscriber number. For calls from other parts of Taiwan, always include the trunk prefix 0 and the area code 47. For international callers: Dial your country's international access code (e.g., 011 from North America, 00 from many countries), followed by Taiwan's country code 886, then the area code 47 (without the leading 0), and the 7-digit subscriber number. Example: To call a number in Taichung with subscriber number 1234567, dial +886 47 1234567 from abroad. Ensure you drop the trunk prefix '0' to avoid dialing errors.