Area Code 355 – Changzhi, Shanxi
The phone area code for Changzhi, Shanxi is 355 (international format +86355). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 355
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Changzhi, Shanxi
Overview of Area Code +86 355
Area code +86 355 is a geographic National Destination Code (NDC) assigned to Changzhi (长治), a prefecture-level city in the southeastern part of Shanxi Province, China. The code is used for landline (fixed-line) telephone numbers within the city's administrative boundaries, including its urban districts and surrounding counties. Changzhi is an important industrial and transportation hub, and this code serves both residential and business subscribers.
Geographic Coverage and Administrative Jurisdiction
The +86 355 area code covers the entire prefecture-level city of Changzhi, which includes the urban districts of Luzhou, Shangdang, and Lucheng, as well as the counties of Xiangyuan, Tunliu, Pingshun, Licheng, Huguan, Zhangzi, Qinshui, and Qinxian. The code is administered under China's national numbering plan, which follows ITU-T E.164 recommendations. The geographic allocation means that the code is tied to the physical location of the telephone exchange, although with modern fixed-line services, calls are routed based on the assigned number.
Dialing Formats and Instructions
For local callers within Changzhi: When dialing a number within the same area code, the national trunk prefix 0 and the area code are omitted. Simply dial the 7-digit local subscriber number. For example, to call a local number 1234567, dial 1234567.
For callers from other regions in China: Dial the national trunk prefix 0, followed by the area code 355, and then the 7-digit subscriber number. For instance, to call a Changzhi landline from Beijing, dial 0355 1234567.
For international callers: Dial your country's international access code (e.g., 011 from the US, 00 from most European countries), followed by China's country code 86, then the area code without the leading zero, and the subscriber number. For example, from the US, dial 011 86 355 1234567. From the UK, dial 00 86 355 1234567.
Number Length and Formatting
Subscriber numbers in Changzhi are 7 digits long, making the total length of a national significant number (NSN) 9 digits when the area code is included (excluding the trunk prefix). Internationally, the full E.164 number is 11 digits: country code 86 + area code 355 + 7-digit subscriber number. An example of a complete international format is +86 355 1234567.
Overlay and Future Considerations
As of the latest updates, there is no overlay area code for Changzhi; the 355 code remains the sole geographic code for the region. However, with the growing demand for telecommunication services, the local telecom regulator may introduce additional numbering resources in the future. Always verify the current dialing procedures with your service provider if you are unsure.