Its listings cover provinces, regencies and cities, districts, and villages or urban wards, with information extending to the local level. The site presents data for Indonesia’s 38 provinces and provides official postal code references for locations throughout the archipelago. Its directory is based on Ministry of Home Affairs Regulation No. 72 of 2019, which it identifies as the source for its regional data.

Visitors can browse regional listings and search for postal codes, making desapos.id a practical reference for finding location information in one place. The service is offered free of charge and can be used without attribution, with the site naming the public, researchers, and government as intended audiences. Beyond the directory itself, the website includes informational pages about the service, contact details, and a privacy policy. By organizing regional and postal information into a searchable resource, desapos.id supports everyday lookups as well as research and administrative reference needs.