Prefix Information
The prefix 644 is part of area code 531 serving Omaha, Nebraska.
This exchange contains 10,000 possible phone numbers (531-644-0000 through 531-644-9999).
Phone numbers with prefix 644 in area code 531. Location: Omaha, Nebraska.
The prefix 644 is part of area code 531 serving Omaha, Nebraska.
This exchange contains 10,000 possible phone numbers (531-644-0000 through 531-644-9999).