Help
Welcome to the Who-Calling.eu help section. Here you’ll find answers to common questions and guides for using the website and mobile app.
1. What is Who-Calling.eu?
Who-Calling.eu is a web service and mobile app that helps identify unknown phone numbers. Users can share experiences, rate numbers, add comments, and block spam or nuisance calls.
2. How do I look up a phone number?
- Enter the phone number into the search field.
- Click the Search button.
- You’ll see results including ratings and experiences from other users.
3. How do I add a comment or rating?
- Find the specific number using search.
- Scroll to the Ratings and comments section.
- Fill in a comment or select a rating and submit.
Note: Comments must not contain personal data, vulgarities, or illegal content.
4. How do I report an inappropriate comment?
Next to each comment you’ll find a Report button. Click it and describe the reason. Our team will review the comment.
5. How does number blocking work in the mobile app?
If you use the mobile app, you can block numbers directly:
- Open the phone number detail
- Tap Block number
- The number will be added to your block list
6. Why are there no details for some numbers?
If no one has rated or commented on a number yet, the page may be empty. Help the community by adding the first experience!
7. Is the service free?
Yes, using the Who-Calling.eu website and app is free. Some advanced features may be premium (if offered).
8. How can I contact support?
If you didn’t find an answer, contact us:
📩 Support email: email@pavelkudrna.cz
🌐 Website: https://kdo-volal.eu
9. Security and privacy
We respect your privacy. See our: Privacy Policy
10. Frequently Asked Questions (FAQ)
Block it in your app or phone settings and add a comment to help other users.
Yes, just contact us with the number and the comment text.
Check your internet connection, try another browser, or restart the app.
Last updated: 25.10.2025