How to inquire about the unit house number?

1. First, open the mobile map app, click the search box, then enter the house number information, and finally click the search query information.

2. Secondly, for the unit house number inquiry, you can go to the local housing authority to find relevant personnel to inquire about the house number with your ID card or house certificate.

3. Finally, ask the courier, courier and other people who deliver the logistics to the door to know their house numbers.