About this number
(509) 221 is a landline based telephone number operated by Frontier Communications Northw and is located in zip code 99336 in the city of Kennewick, Washington, which is in Benton County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 509 and Network Numbering Exchange (NXX - also known as a prefix) of 221. It has an Operating Company Number (OCN) of 4324. A Common Language Location Identifier (CLLI) of KNWCWAXADS2. As well as a Local access and transport area (LATA) of 676. It was first assigned for usage on 08/07/2013. Zip code 99336 has a population of 48,753 as of the 2010 census.