About this number
(256) 429 is a landline based telephone number operated by At&T Local and is located in zip code 35811 in the city of Huntsville, Alabama, which is in Madison County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 256 and Network Numbering Exchange (NXX - also known as a prefix) of 429. It has an Operating Company Number (OCN) of 7421. A Common Language Location Identifier (CLLI) of HNVIAL960MD. As well as a Local access and transport area (LATA) of 477. Zip code 35811 has a population of 25,955 as of the 2010 census.