About this number
(423) 685 is a landline based telephone number operated by Na Communications, Inc. and is located in zip code 37601 in the city of Johnson City, Tennessee, which is in Washington 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 685. It has an Operating Company Number (OCN) of 8945. A Common Language Location Identifier (CLLI) of JHCYTNXC43T. As well as a Local access and transport area (LATA) of 956. Zip code 37601 has a population of 36,182 as of the 2010 census.