You have got a call from phone number beginning with 1 or 001 or 0111 or +1 and you want to know which country is the country code 1.
Which country has 1 as dialing code?
The country code 1 (1 area code) belongs to:
1 code country is preceded either by 00 ( 001 ) or 011 ( 0111 ) for calls made from USA and Canada and by the sign plus (+1).
Flag of Puerto Rico :