Prefix Information
The prefix 604 is part of area code 563 serving Davenport, Iowa.
This exchange contains 10,000 possible phone numbers (563-604-0000 through 563-604-9999).
Phone numbers with prefix 604 in area code 563. Location: Davenport, Iowa.
The prefix 604 is part of area code 563 serving Davenport, Iowa.
This exchange contains 10,000 possible phone numbers (563-604-0000 through 563-604-9999).