Area Code 228-604 located in GULFPORT, HARRISON, MS, more detail is as below. Place NPA (Numbering Plan Area) : 228 NXX (Local Number Prefix) : 604 City : GULFPORT County : HARRISON State : MS (Mississippi) NXX Use Type : Landline NXX Intro Version : 1998-08-14 FIPS (Federal Information Processing Standards) : 28047 LATA (Local Access Transport Area) : 484 Rate Center : GULFPORT ZIP Code Count : 63 ZIP Code Frequency : 8 ZIP Code : 39503 Other Information NPANXX : 228604 County Population : 0 Switch CLLI (Common Language Location Identifier) : BILXMSEDDS0 MSA CBSA (Core Based Statistical Area) : Gulfport-Biloxi, MS MSA CBSA Code (Core Based Statistical Area) : 25060 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL OCN (Operating Company Number) : 9419 Coverage Area Name : GULFPORT Latitude : 30.4022 Longitude : -88.9972 ‹ previous : 228-602 next › : 228-604 Telephone Number List 228-604-0000 ~ 228-604-9999