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Area code & postal code lookup

Handy lookup tools and small reference tables, plus lightweight health/reaction calculators.

Tip: area codes & postcodes

In mainland China, long-distance landline calls need a leading 0 before the area code; international calls use +86 without that 0. Postcodes may change with admin divisions.

Look up domestic area codes and postal codes worldwide. Mainland China includes province, city, and district levels. Search by keyword or use the cascading selectors.

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Selected region： Mainland China

Country calling code: +86

For mainland China landlines, prefix 0 when calling from outside the area (e.g. Beijing 010). Rules vary elsewhere.

Compiled from public administrative and numbering data; verify with local post and telecom authorities.