Area code 425

Area code 425 is a telephone dialing code in Washington for the suburbs north and east of Seattle, particularly the Eastside, extending east to North Bend, north to Everett, and south to Maple Valley. It includes the city of Bellevue, Seattle's largest suburb. The area code went into service on April 27, 1997, as part of a three-way split of area code 206 (the other of the three is 253). April 27, 1997, through November 15, 1997, was a "transition period" for the new code. 425 became mandatory on Sunday, November 16, 1997.

Area code 425

Area code 425 is a telephone dialing code in Washington for the suburbs north and east of Seattle, particularly the Eastside, extending east to North Bend, north to Everett, and south to Maple Valley. It includes the city of Bellevue, Seattle's largest suburb. The area code went into service on April 27, 1997, as part of a three-way split of area code 206 (the other of the three is 253). April 27, 1997, through November 15, 1997, was a "transition period" for the new code. 425 became mandatory on Sunday, November 16, 1997.