Base registry for address
Base registry for address is a database of addresses and locations that can be used by anyone for free as a base registry.
Background of Efforts
Address and location information is used as an item in many ledgers in the public and private sectors, such as the addresses of individuals and the locations of corporations and public facilities. The address and location are structured as shown in Fig. 1, but town / village information and residential indication information are managed separately by municipalities and parcel numbers are managed separately by registry offices, so the administration cannot centrally manage standard addresses and locations. In addition, the hierarchical structure of address and location notation that is generally circulated varies depending on the area, and there are many special cases, which makes it difficult to make a data connections using an address as a key. In Digital Agency, we are promoting a data maintenance of the address and location as a base registry for address.
Figure 1
Overview of Efforts
In fiscal 2021 (2021), we developed the initial database using existing addresses and locations held by the government (see Fig. 2), and developed the functions necessary to operate and manage the developed initial database (see Fig. 3). The developed initial database is positioned as a test-published version developed by Digital Agency, and is posted on the registry catalog public website as CSV data for each local government, and is widely released to the public as open data.
Figure 2
Figure 3
There were various Issue left for the initial data to be used as address and location data. We are currently working on responding to these Issue (see Table 1). In response to this Issue response, we have updated and posted a version with finalized specifications for the data format and data manual (to be released later). (See Related Information.) In addition, we have started disclosing the actual disclosed data in the form of a version with finalized specifications since the end of fiscal 2023 (2023).
Table 1
Issue at early data maintenance | Response | Response period |
---|---|---|
Shortage and fluctuation of town letters | Comparison with information held and managed by local government and reflection of the results of verification | We will respond by the end of fiscal 2024 (fiscal 2024) and reflect and disclose it in the database. |
Indication of residence Omission of local government | Confirm whether or not residence indication has been implemented in local government and reflect the results of the confirmation | |
Non-Reflection of Private Character Records from real estate registry | Maintenance of a list of character identification and degeneracy | Reflection and disclosure in the database |
The same string of town letters within the same local government | System modification to be able to respond | |
Kyoto Street names not supported | Received data from Kyoto City, and data maintenance and system renovation | |
There are few postal codes (about 15%). | Linkage was performed and 95% linkage was performed. | |
Lot number not yet supported | Development of lot numbers from maps kept by registry offices |
In addition, base registry for address has stipulated that "the code value of the town character ID specified in the base registry for address' Town Character Master Data Set' developed by Digital Agency shall be set" in the data item "Address _ Town Character Code" of each system in local governments Information Systems Data Requirements and Cooperation Requirements . Therefore, we plan to collect information from local government and develop a database for the town character data of base registry for address during fiscal 2024 (2024), and after twenty twenty-five (twenty twenty-five), we plan to collect and provide updated information from local government as needed to keep the data up to date.
Related Information
- Registry Catalog (downloading data)
- Data Format (Finalized Version) (Excel / 98 kb) (updated January 15, 2024)
- Base registry for address Data Manual (Finalized Version) (Under Preparation for Publication)
- Data Terms of Use
- Publication of conversion converters for map data (map XML format) kept by registry offices
- About base registry for address Geocoder (PDF / 206 kb)