Their messages no longer deliver or show read receipts
Their profile picture disappears or stops updating
Their status or last seen is no longer visible
Your calls go straight to voicemail or fail
You cannot add them to groups or chats
Their posts, stories, or updates no longer appear to you
Search results for their account no longer show the same profile
You can still send messages, but they never seem to reach them
Their account appears unavailable or restricted when you try to contact them
Mutual contacts can still see them, but you cannot