About this number
(425) 728 is a landline based telephone number operated by Level 3 Communications, LLC - and is located in zip code 98109 in the city of Seattle, Washington, which is in King County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 425 and Network Numbering Exchange (NXX - also known as a prefix) of 728. It has an Operating Company Number (OCN) of 6121. A Common Language Location Identifier (CLLI) of STTNWAHODSC. As well as a Local access and transport area (LATA) of 674. Zip code 98109 has a population of 20,715 as of the 2010 census.