Before submitting an application, you must check whether you already have an EORI number.
For example, economic operators established in Belgium have a unique company number attributed by the Central Bank of Entreprises (e.g. 0473.627.046). In order to find your EORI number, you must add the letters “BE” in front of the numbers without any spaces nor dots (e.g. BE0473627046).
In order to check the validity of your EORI number, you must visit the website of the European Commission and enter the proposed EORI number (see here).
If the following message appears: "This EORI number is valid", it means that your EORI number exists and is valid. You do not need to submit a new application.