What does it mean that the institution code in the patent application is 00000?

Patent agencies are examined and approved by China National Intellectual Property Administration, and each legally established agency has a code given by China National Intellectual Property Administration. The first place is the region, the second place is the province, and the last three places are the serial number. For example, 13 106, Shuncheng Patent Office, North China District, Tangshan City, Hebei Province, tel. 03 15-23 13249.