Prefix Information
The prefix 640 is part of area code 716 serving Buffalo, New York.
This exchange contains 10,000 possible phone numbers (716-640-0000 through 716-640-9999).
Phone numbers with prefix 640 in area code 716. Location: Buffalo, New York.
The prefix 640 is part of area code 716 serving Buffalo, New York.
This exchange contains 10,000 possible phone numbers (716-640-0000 through 716-640-9999).