what area code is 256
Area code 256 is found in the US state of Alabama. Primarily servicing the city of Huntsville (population: 194871), area code 256 covers 22 counties of Alabama. Located in the Central time zone, area code 256 is on the same time as Chicago, IL.Area code 256 was brought into effect on March 23, 1998.rimarily servicing the city of Huntsville (population: 194871), area code 256 covers 22 counties of Alabama. Located in the Central time zone, area code 256 is on the same time as Chicago, IL. Area code 256 was brought into effect on March 23, 1998.