About this number
(509) 678 is a landline based telephone number operated by Centurytel Of Cowiche, Inc. Db and is located in zip code 98923 in the city of Cowiche, Washington, which is in Yakima 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 678. It has an Operating Company Number (OCN) of 2410. A Common Language Location Identifier (CLLI) of CWCHWAXXDS0. As well as a Local access and transport area (LATA) of 676. Zip code 98923 has a population of 1,434 as of the 2010 census.