Prefix Information
The prefix 603 is part of area code 304 serving Charleston, West Virginia.
This exchange contains 10,000 possible phone numbers (304-603-0000 through 304-603-9999).
Phone numbers with prefix 603 in area code 304. Location: Charleston, West Virginia.
The prefix 603 is part of area code 304 serving Charleston, West Virginia.
This exchange contains 10,000 possible phone numbers (304-603-0000 through 304-603-9999).