About this number
(423) 347 is a landline based telephone number operated by Network Telephone Corporation and is located in zip code 37917 in the city of Knoxville, Tennessee, which is in Knox County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 423 and Network Numbering Exchange (NXX - also known as a prefix) of 347. It has an Operating Company Number (OCN) of 3633. A Common Language Location Identifier (CLLI) of KNVLTNMADS4. As well as a Local access and transport area (LATA) of 474. Zip code 37917 has a population of 24,072 as of the 2010 census.