509-231 Prefix — Kennewick, Washington

Phone numbers starting with 509-231 are based in Kennewick, Washington, primarily served by Verizon.

Recently looked-up numbers in 509-231

• 509-231-8270
• 509-231-0364

More about this region

Area code 509 directory · About area code 509 · Get a WA phone number

Last updated: April 4, 2026