Area Code 228-221 located in HARRISON, HARRISON, MS, more detail is as below. Place NPA (Numbering Plan Area) : 228 NXX (Local Number Prefix) : 221 City : HARRISON County : HARRISON State : MS (Mississippi) NXX Intro Version : 7/5/2007 Rate Center : GULFPORT ZIP Code Count : 0 ZIP Code Frequency : 0 Other Information NPANXX : 228221 County Population : 0 Switch CLLI (Common Language Location Identifier) : GLPTMS55DS6 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 228-220 next › : 228-222 Telephone Number List 228-221-0000 ~ 228-221-9999