🔎 How does Nummeropslag.dk work?
How to look up a Danish number for free — and where the information comes from.
By Nummeropslag.dk · Last updated: 2026-06-15
Look up a number in seconds
Enter an 8-digit Danish number in the search field. You immediately see the registered company from CVR, the operator, the number type and a spam rating from other users. No login, no app required.
Where does the information come from?
From official, public sources: CVR (companies), the Danish number register (operator, SDFI/CC0) and anonymous user reports, which are only shown when several users agree. Read more under Features.
Free and private
Looking up is free, and we never upload your contacts or show the names of private individuals. Read about privacy.
Frequently asked questions
Is it free to look up a number?
Yes, it is completely free.
Do I need to create an account?
No. You can look up numbers without logging in. An app for Android is also available.
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