Area code 425 is a telephone area code in the North American Numbering Plan (NANP) for the suburbs north and east of Seattle in the U.S. state of Washington. The numbering plan area includes the Eastside, extending east to North Bend, north to Everett, and south to Maple Valley.
Area code 425 is a telephone area code in the North American Numbering Plan (NANP) for suburban regions north and east of Seattle within Washington state. This area plan includes the Eastside, extending east to North Bend, north to Everett, and south to Maple Valley.