Prefix Information
The prefix 840 is part of area code 402 serving Omaha, Nebraska.
This exchange contains 10,000 possible phone numbers (402-840-0000 through 402-840-9999).
Phone numbers with prefix 840 in area code 402. Location: Omaha, Nebraska.
The prefix 840 is part of area code 402 serving Omaha, Nebraska.
This exchange contains 10,000 possible phone numbers (402-840-0000 through 402-840-9999).