About this number
(423) 727 is a landline based telephone number operated by United Telephone-Southeast-Tn and is located in zip code 37683 in the city of Mountain City, Tennessee, which is in Johnson 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 727. It has an Operating Company Number (OCN) of 4510. A Common Language Location Identifier (CLLI) of MTCYTNXARS0. As well as a Local access and transport area (LATA) of 956. Zip code 37683 has a population of 13,021 as of the 2010 census.