Prefix Information
The prefix 340 is part of area code 402 serving Omaha, Nebraska.
This exchange contains 10,000 possible phone numbers (402-340-0000 through 402-340-9999).
Phone numbers with prefix 340 in area code 402. Location: Omaha, Nebraska.
The prefix 340 is part of area code 402 serving Omaha, Nebraska.
This exchange contains 10,000 possible phone numbers (402-340-0000 through 402-340-9999).