Area Code 566 – Chizhou, Anhui

Geographic Overview

The +86 566 country and area code combination is assigned to Chizhou (池州), a prefecture-level city located in the southern part of Anhui Province, China. Chizhou is situated on the southern bank of the lower Yangtze River and is known for its scenic landscapes, including the famous Mount Jiuhua, a sacred Buddhist mountain. The city administers several districts and counties, including Guichi District, Dongzhi County, Shitai County, and Qingyang County. As a geographic code, 566 is used for fixed-line telephone services within this region.

Dialing Formats

When calling a fixed-line number in Chizhou from within China, the trunk prefix 0 is used before the area code. The local number typically consists of 7 digits, making the complete domestic dialing format: 0 566 XXX XXXX. For example, a local number might be dialed as 0566 123 4567.

For international callers, the country code +86 is used, and the trunk prefix 0 is omitted. The international dialing format becomes: +86 566 XXX XXXX. For instance, an international caller would dial +86 566 123 4567 to reach the same number.

Caller Instructions

• Local callers within Chizhou: If you are calling from within the same area code, you may often dial only the 7-digit local number without the area code, depending on your carrier's local dialing rules. However, for clarity and to avoid misdialing, it is recommended to use the full 10-digit format (0 566 + local number) when calling from mobile phones or when in doubt.
• Domestic callers from other regions in China: Always dial 0 566 followed by the local 7-digit number. For example, 0 566 123 4567.
• International callers: Dial your country's international access prefix (e.g., 011 from the US, 00 from most European countries), then China's country code 86, then the area code 566 without the leading zero, and finally the local 7-digit number. Example: 011 86 566 123 4567 from the US.

Numbering and Overlays

As of the latest ITU-T E.164 guidelines, the area code 566 is a geographic code without any overlay plans currently implemented. The number length is fixed at 7 digits for local subscribers. Mobile numbers in China are not assigned geographic area codes; they use separate prefixes such as 13x, 15x, 18x, etc., and are dialed as +86 1XX XXXX XXXX internationally. Therefore, the 566 code is exclusively for fixed-line services.

Important Notes

When dialing from abroad, always ensure you have the correct international exit code. Also, be aware that some VoIP services may require a different dialing pattern. For the most accurate and up-to-date dialing instructions, consult your telecom provider.