Area Code 256-203 located in MADISON, MADISON, AL, more detail is as below. Place NPA (Numbering Plan Area) : 256 NXX (Local Number Prefix) : 203 City : MADISON County : MADISON State : AL (Alabama) NXX Intro Version : 4/15/2013 Rate Center : HUNTSVILLE ZIP Code Count : 0 ZIP Code Frequency : 0 Other Information NPANXX : 256203 County Population : 0 MSA CBSA (Core Based Statistical Area) : Huntsville, AL MSA CBSA Code (Core Based Statistical Area) : 26620 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : QWEST COMMUNICATIONS COMPANY, LLC OCN (Operating Company Number) : 7575 Latitude : None Longitude : None ‹ previous : 256-202 next › : 256-205 Telephone Number List 256-203-0000 ~ 256-203-9999