Tap the conversation to open it. At the top, tap the contact’s name or number (or the “i” icon if available).
Open the Messages app (green speech bubble). how do i unblock a number on my iphone
Open the Phone app (green receiver icon). Tap the conversation to open it
Tap Unblock this Caller (it will be in red text). Confirm if prompted. how do i unblock a number on my iphone