About this number
(509) 366 is a wireless/mobile based telephone number operated by United States Cellular Corp. - 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 366. It has an Operating Company Number (OCN) of 6270. A Common Language Location Identifier (CLLI) of KNWCWABB1MD. As well as a Local access and transport area (LATA) of 676. Zip code 99336 has a population of 48,753 as of the 2010 census.