Switch to 10-digit dialing

October 29, 2021

On Oct. 24 the switch to 10-digit dialing begins. That means you must include the 509 area code when dialing a local number. In July 2022 seven-digit dialing will no longer work and may cause calls to fail.

Please check to see if yours, your family’s, and friend’s systems are up to date, including:

  • life safety systems or medical monitoring devices
  • Internet dial-up numbers
  • fire or burglar alarm and security systems or gates
  • mobile or other wireless phone contact lists
  • voicemail services and other similar functions

A business with a 509 telephone number should update all of its materials to include the three-digit area code, such as its:

  • company website
  • stationary and letterhead
  • advertising materials
  • contact information
  • ID tags and cards

This change to 10-digit dialing in eastern Washington’s 509 area code is a first step toward making sure that everyone in the country will be able to reach the National Suicide Prevention Lifeline using a three-digit code of 988 that launches in 2022.

10-digit dialing will not change:

  • Your telephone number or area code
  • The price of a call
  • Coverage areas.
  • Rates and services
  • Whether a call is local or long-distance
  • Existing three-digit services such as 911, 711, and 211
  • The existing 1-800-273-8255 (TALK) suicide prevention hotline number

For more information, please visit our website: or contact your phone company.