206-257 Prefix — Seattle, Washington

Phone numbers starting with 206-257 are based in Seattle, Washington, primarily served by Onvoy, LLC - WA.

Recently looked-up numbers in 206-257

• 206-257-7618
• 206-257-7523

More about this region

Area code 206 directory · About area code 206 · Get a WA phone number

Last updated: February 20, 2026