Try to give the person a call to check if you have been blocked by him or her. Way 4 Use the Viber Calling Feature & Place a Call to the Person To that end, you might be interested in the fourth method. However, it is often good to be 100% sure. You will find the answer you need by the time you apply the third method. You may need to try all the 3 methods to be sure that you have really been blocked. The methods and steps above can help to know if you have been blocked on Viber by someone.
Must Read: How to recover deleted Viber messages from iPhone > If he replies to their messages but not yours, you have been blocked.