Open the Settings app
Tap Phone
Tap Blocked Contacts
View the list of blocked numbers and contacts
Open the Settings app
Tap Messages
Tap Blocked Contacts
View the blocked list
Open the Settings app
Tap FaceTime
Tap Blocked Contacts
View the blocked list
To remove a blocked number, tap Edit in the blocked list
Tap the minus icon next to the number or contact
Tap Unblock
To check blocked email addresses, open Settings
Tap Mail
Tap Blocked Sender Options if available