Numbering data (door number data) is the building door number data produced by enriching the resources collected from the field. Door numbers were determined one by one on the photographs taken during the field studies and digitized. In addition, with office studies, data has been enriched by using many sources.
As a result of this study, 21 million door number data was produced. Currently, we have 80% of city centers door number data in Turkey. A hierarchical data was created by associating these data with the road and POI data. The generated data is compatible with NAD.