Prefix Information
The prefix 640 is part of area code 701 serving Fargo, North Dakota.
This exchange contains 10,000 possible phone numbers (701-640-0000 through 701-640-9999).
Phone numbers with prefix 640 in area code 701. Location: Fargo, North Dakota.
The prefix 640 is part of area code 701 serving Fargo, North Dakota.
This exchange contains 10,000 possible phone numbers (701-640-0000 through 701-640-9999).