Area Code 737 – Yiyang, Hunan
The phone area code for Yiyang, Hunan is 737 (international format +86737). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 737
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Yiyang, Hunan
Geographic Coverage and Administrative Jurisdiction
The area code 737 is a geographic National Destination Code (NDC) assigned to Yiyang (益阳), a prefecture-level city in the central-southern part of Hunan Province, China. Yiyang is situated on the southern bank of the Yangtze River and administers several districts and counties, including the urban districts of Heshan and Ziyang, as well as the counties of Nanxian, Taojiang, Anhua, and Yuanjiang (a county-level city). The code covers the entire administrative territory of Yiyang, serving both the urban core and surrounding rural areas.
Dialing Formats and Caller Instructions
International format: When calling a fixed-line number in Yiyang from outside China, you must dial the international access prefix (e.g., 011 from the US, 00 from most European countries), followed by China’s country code +86, then the area code 737, and finally the local subscriber number. For example, a local number such as 1234567 would be dialed as +86 737 1234567 internationally.
Domestic long-distance format: From other regions within China, dial the trunk prefix 0 followed by 737 and the subscriber number: 0737 1234567.
Local dialing: Within Yiyang, callers can typically dial the 7-digit subscriber number directly without the area code. However, if the local network has implemented overlay plans or if you are calling from a mobile phone, it is advisable to include the area code to ensure proper routing.
Number Structure and Overlay Considerations
Local fixed-line numbers in Yiyang consist of 7 digits, making the total length of a domestic number (including the trunk prefix) 11 digits. As of the latest ITU-T E.164 guidelines, China has not implemented overlay codes for most prefecture-level cities; therefore, 737 remains the sole geographic code for Yiyang. No overlay is currently in effect, but callers should always confirm the current dialing plan with their service provider.
Caller Instructions for Local and Foreign Callers
For callers within Yiyang, simply dial the 7-digit local number. For callers from other Chinese cities, use the domestic long-distance prefix 0 before the area code. International callers must replace the trunk prefix 0 with the country code +86 and omit the leading zero. Always verify the subscriber number length, as some businesses may list numbers in a format that omits the area code when displayed locally.