2. If there is no bill, you can call the local water company to check the customer number according to your home address:
3. You can log in to official website, a local water supply group, and inquire after giving the specific home address in the online business of the website:
Legal basis: Article 4 of the Regulations on Household Registration in People's Republic of China (PRC) shall establish a household registration book.
Cities, waters and towns with police stations shall issue household registration books to every household.
Rural cooperatives issue household registration books as units; The household registration book is not issued to accounts outside the cooperative.
The household register and the items registered in the household register have the effect of proving citizenship.