Prefix Information
The prefix 340 is part of area code 504 serving New Orleans, Louisiana.
This exchange contains 10,000 possible phone numbers (504-340-0000 through 504-340-9999).
Phone numbers with prefix 340 in area code 504. Location: New Orleans, Louisiana.
The prefix 340 is part of area code 504 serving New Orleans, Louisiana.
This exchange contains 10,000 possible phone numbers (504-340-0000 through 504-340-9999).