Restore your iPhone with Finder/iTunes backup.Make sure On My iPhone is selected as default.With that said, let’s follow along to cut the clutter! Having taken a close look at each possible scenario, we have offered possible solutions that can bring back the missing iPhone contacts. It could be due to a buggy software update, ill-fated restore, or sluggish syncing owing to the poor internet connection. Well, there could be more than one reason why contacts go missing on an iOS device. So, Why do contacts disappear from the iPhone in the very first place?

If you are looking for a way to fix the disappeared Phone contacts, follow our solutions below. This is inconvenient, especially when you have to make an emergency call and find that the contact is missing. The contacts suddenly disappear, either some or all. One of the most common problems that many users have come across is iPhone contacts being disappeared mysteriously! The problem seems to have been exacerbated after the iOS 15 update.

Iphone directory list