About this number
(509) 312 is a wireless/mobile based telephone number operated by T-Mobile Usa, Inc. and is located in zip code 98926 in the city of Ellensburg, Washington, which is in Kittitas 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 312. It has an Operating Company Number (OCN) of 6529. A Common Language Location Identifier (CLLI) of ELBGWA060MD. As well as a Local access and transport area (LATA) of 676. It was first assigned for usage on 07/11/2001. Zip code 98926 has a population of 30,239 as of the 2010 census.