Once you are in the "Blocked Contacts" menu, you have several options for managing these numbers:
If you recently received a call from a number you want to check or unblock, you don't need to dig through Settings. how to look at blocked numbers on iphone
If you blocked someone specifically during a FaceTime call, or if you want to ensure they cannot video call you, you need to check this list. While the Phone and FaceTime lists often sync, they can sometimes be independent depending on how the block was initiated. Once you are in the "Blocked Contacts" menu,
Because blocking a number on iPhone applies across Phone, FaceTime, and Messages simultaneously, you can access the same list from several different starting points: and Messages simultaneously