Callers within Washington’s 509 area code must now include that area code, the Washington Utilities and Transportation Commission said. The switch took effect Sunday, Oct. 24. The change to 10-digit ...

SPOKANE, Wash. — The only area code in Washington that allows seven-digit dialing for phone calls is 509. Beginning Sunday, callers will all dial the same way in the state, by using 10-digit dialing.

SPOKANE, Wash. — Things are changing in eastern Washington, and that includes changing the way you dial local phone numbers. Starting on Oct. 24, there will be no more seven-digit dialing, you’ll have ...