Depending on your iOS version, there are two primary ways to find your blocked numbers. Method 1: Use Settings (Most Reliable)
If you are looking specifically for a number you blocked via the Messages app, you can find it there as well. how to find blocked numbers on iphone
Whether you accidentally blocked a friend or just need to check if a specific number is on your block list, iOS makes it easy to locate your blocked contacts. The list is tucked away inside your Settings app. Depending on your iOS version, there are two