Step 1: Find 1 or preferably 2 nice pictures of your cat
Step 2: Join the group “Vermiste katten Vlaams- Brabant (B)” on Facebook. There you reach hundreds of people immediately.
Once you join the group, post a message with the following information:
Also include whether you have notified the police or a shelter
Also report it on the website https://www.vermistekatten.be/invulformulier/
Always put an update, in or below the message, if the owner has been found, if the animal has gone to a shelter or the police so that the message is not shared further and it can be deleted or delete the message yourself.
And don’t give up. Many cats return on their own after a few weeks or months.