Exact where possible, locator where necessary
Municipality, NIS code, province and region are resolved from the bundled Belgian place dataset. Some service territories are more granular than a postcode or change independently, so the tool deliberately links to the relevant official locator instead of guessing a police zone, water supplier or intermunicipal operator.
Why this is useful
Belgian responsibilities are split across municipality, province, region, police/rescue zones and utility operators. This page gives one starting point while preserving the authority of the official service behind each result.
Open source
The municipality/region and service-routing engine is MIT-licensed in belgian-utils / address-authorities.js.
Is my data uploaded?
No. Postcode and municipality resolution runs in your browser, so nothing you add is sent to gratistools.be. See the privacy page for details.
Frequently asked questions
Is this tool free?
Yes. The core tool is free to use in your browser.