About this number
(423) 420 is a landline based telephone number operated by Bellsouth Telecomm INC DBA Sou and is located in zip code 37354 in the city of Madisonville, Tennessee, which is in Monroe 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 420. It has an Operating Company Number (OCN) of 9419. A Common Language Location Identifier (CLLI) of MDVITNMTDS0. As well as a Local access and transport area (LATA) of 474. Zip code 37354 has a population of 16,483 as of the 2010 census.