Area Code 778 – Hechi, Guangxi

Overview of Area Code +86 778

Area code 778 is a geographic destination code within the Chinese national numbering plan, assigned to Hechi City (河池市) in the Guangxi Zhuang Autonomous Region. Hechi is a prefecture-level city located in northwestern Guangxi, bordering Guizhou to the north. The code covers the urban districts and all subordinate counties under Hechi's administrative jurisdiction, including Jinchengjiang District, Yizhou District, Nandan County, Tian'e County, Fengshan County, Donglan County, Bama Yao Autonomous County, Du'an Yao Autonomous County, and Dahua Yao Autonomous County.

Dialing Formats

When calling a fixed-line or VoIP number in Hechi from within China, you must dial the full national number: 0 (trunk prefix) followed by the area code 778 and the local subscriber number (typically 7 digits). For example, a local number such as 1234567 would be dialed as 0778 1234567 from anywhere in China.

For international callers, the format is: +86 778 followed by the local subscriber number (without the leading 0). For instance, to call the same number from abroad, you would dial +86 778 1234567.

Geographic and Administrative Context

Hechi is known for its karst landscapes and is the birthplace of the Zhuang folk song culture. The area code 778 is exclusively used for PSTN (Public Switched Telephone Network) and fixed VoIP services. Mobile numbers in Hechi, as elsewhere in China, use the non-geographic prefixes 13x, 14x, 15x, 16x, 17x, 18x, and 19x and are not tied to this area code.

Overlay and Numbering Considerations

As of the current numbering plan, there is no overlay code for Hechi; 778 remains the sole area code for the region. Local calls within Hechi do not require the area code if dialed from the same city, but for clarity and to avoid misdialing, it is recommended to always use the full national number when calling from mobile phones.

Caller Instructions

• Local callers (within Hechi): For fixed-line to fixed-line calls, you may dial only the 7-digit subscriber number. However, using the full 0778 number is always safe.
• Domestic long-distance callers (from other Chinese cities): Dial 0778 followed by the subscriber number.
• International callers: Dial your country's exit code (e.g., 00 from many countries, 011 from the US/Canada), then 86, then 778, and the subscriber number. Do not include the leading 0.

Always verify the current number length and any local dialing changes with your service provider, as telecom regulations may evolve.