Tap Blocked Contacts to see the master list for all communication apps. Managing the Blocked List
Tap Edit in the top right, then tap the red minus icon (or swipe left on the number) and select Unblock . see blocked numbers iphone
The most direct route to your blocked numbers lies within the iPhone’s application. This is the central command center for all restrictions. To begin, locate and tap the grey gear icon labeled "Settings." From there, scroll down until you find the Phone tab. Once inside the Phone settings, scroll again—this time nearly to the bottom of the menu. Just above options for "Wi-Fi Calling" and "Call Forwarding," you will find an entry simply titled "Blocked Contacts." Tapping this reveals the complete, chronological list of every number, contact, or Apple ID you have ever blocked. From this screen, you can swipe left on any entry and tap "Unblock" to restore communication. Tap Blocked Contacts to see the master list
The easiest way to find your blocked list is through the Phone settings: Open the app on your iPhone. This is the central command center for all restrictions
For most users, including those on older iOS versions, the list is found under individual app settings: Scroll down and tap Blocked Contacts . Settings > Messages: Scroll down and tap Blocked Contacts . Settings > FaceTime: Scroll down and tap Blocked Contacts .
Go to Settings > Apps > FaceTime > Blocked Contacts . Via Mail: Go to Settings > Apps > Mail > Blocked . How to Unblock a Number
If you find a number that shouldn't be there, you can remove it instantly: How to Find Blocked Numbers on iPhone