Refers to the provincial-level postal district ( Heilongjiang ).
This area is in the far northeast of China, near the border with Russia. It experiences extreme seasonal shifts, with long, snowy winters and humid summers. 2. Decoding the Numbers
In the Chinese postal system, each digit in helps narrow down the location:
Interestingly, Taiwan also uses a 6-digit system (often formatted as 3+3), where "100" refers to the Zhongzheng District in Taipei City.
U.S. ZIP codes are typically 5 digits (e.g., 90210). A 6-digit number like 156100 would not be a valid standard U.S. ZIP code, though it could potentially appear as the start of a longer ZIP+4 code if it were in the northeast (where codes start with 0 or 1). Postal Code 156100 - Fujin, Heilongjiang - Cybo