Prefix Information
The prefix 278 is part of area code 509 serving Spokane, Washington.
This exchange contains 10,000 possible phone numbers (509-278-0000 through 509-278-9999).
Phone numbers with prefix 278 in area code 509. Location: Spokane, Washington.
The prefix 278 is part of area code 509 serving Spokane, Washington.
This exchange contains 10,000 possible phone numbers (509-278-0000 through 509-278-9999).