Province · Vietnam
Browse all 11 cities in Tỉnh Lạng Sơn. Find postal codes and location information.
Energy and utility bills in Vietnam encode six-digit values (100000); VN outage‑routing systems correlate customer addresses through those postcodes.
Select a city to explore postal codes.
Province · Vietnam
Browse all 11 cities in Tỉnh Lạng Sơn. Find postal codes and location information.
Energy and utility bills in Vietnam encode six-digit values (100000); VN outage‑routing systems correlate customer addresses through those postcodes.
Select a city to explore postal codes.