Alternatively, open the Phone app and tap Contacts at the bottom of the screen.

The exception to this rule is when you add a number that belongs to a service like Facebook or Venmo, where the phone number is only five digits long. If the number is from a different country, add the corresponding country code (e. g. , “+1” for the U. S. or “+44” for the U. K. ) in front of the phone number. You can also change the type of phone associated with the number by tapping home to the left of the Phone field and then tapping an option (e. g. , Mobile).

If Messages opens to a conversation, tap the Back (<) link in the top-left corner to see a list of all your conversations.

If there are multiple numbers in the conversation you opened, tap the number you wish to add to your contacts.