Tap Blocked Contacts .
Blocking a number on iOS is instant. Luckily, However, Apple hides this setting in a menu you might not think to check— Phone > Blocked Contacts. how to unblock number on iphone
Here is the step-by-step guide to unblocking a number on any iPhone running iOS 17 or iOS 18. This removes the block entirely. The contact will be able to call, FaceTime, and text you again. Tap Blocked Contacts