Prefix Information
The prefix 257 is part of area code 402 serving Omaha, Nebraska.
This exchange contains 10,000 possible phone numbers (402-257-0000 through 402-257-9999).
Phone numbers with prefix 257 in area code 402. Location: Omaha, Nebraska.
The prefix 257 is part of area code 402 serving Omaha, Nebraska.
This exchange contains 10,000 possible phone numbers (402-257-0000 through 402-257-9999).