Area codes in Renton, Washington

Renton, Washington uses area code 425. The main Renton area code is 425.

Area codes serving Renton

Phone numbers in Renton are written as ten digits — for example (425) 555-0190 — and fall in the Pacific Time zone.

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Nearby cities

More cities in Washington

Frequently asked questions

What is the area code for Renton?

The main area code for Renton, Washington is 425.

How many area codes does Renton have?

Renton has 1 area code: 425.

How do you dial a Renton number?

Dial all 10 digits — the area code (425) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.

Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.