Prefix Information
The prefix 640 is part of area code 575 serving Las Cruces, New Mexico.
This exchange contains 10,000 possible phone numbers (575-640-0000 through 575-640-9999).
Phone numbers with prefix 640 in area code 575. Location: Las Cruces, New Mexico.
The prefix 640 is part of area code 575 serving Las Cruces, New Mexico.
This exchange contains 10,000 possible phone numbers (575-640-0000 through 575-640-9999).