Prefix Information
The prefix 340 is part of area code 651 serving St. Paul, Minnesota.
This exchange contains 10,000 possible phone numbers (651-340-0000 through 651-340-9999).
Phone numbers with prefix 340 in area code 651. Location: St. Paul, Minnesota.
The prefix 340 is part of area code 651 serving St. Paul, Minnesota.
This exchange contains 10,000 possible phone numbers (651-340-0000 through 651-340-9999).