About this number
(423) 525 is a landline based telephone number operated by Level 3 Communications, LLC - 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 525. It has an Operating Company Number (OCN) of 4806. A Common Language Location Identifier (CLLI) of JHCYTNXC9MD. As well as a Local access and transport area (LATA) of 956. It was first assigned for usage on 05/14/2008. Zip code 37601 has a population of 36,182 as of the 2010 census.