About this number
(509) 778 is a landline based telephone number operated by Level 3 Communications, LLC - and is located in the city of Prosser, Washington 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 778. It has an Operating Company Number (OCN) of 6121. A Common Language Location Identifier (CLLI) of SPKNWA01XUX. As well as a Local access and transport area (LATA) of 676. It was first assigned for usage on 06/12/2002.