This module provides a Japan postal code data and API for them. This fetches the csv file from the Japan post office website and insert it into the local database. After getting the data, it doesn't depend on any external service.
This fetch process from Japan post office website may fail with a timeout error because it takes a long time (it may be over 1 minute depending on the environment).
This module is only for developers. It provides only APIs and doesn't provide any UI.
For more information, please see the project page at drupal.org.
Found an issue?
If the module doesn't work well, don't hesitate to file an issue in the issue queue.