Area Code 305-456 located in MIAMI, MIAMI-DADE, FL, more detail is as below. Place NPA (Numbering Plan Area) : 305 NXX (Local Number Prefix) : 456 City : MIAMI County : MIAMI-DADE State : FL (Florida) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 12086 LATA (Local Access Transport Area) : 460 Rate Center : MIAMI ZIP Code Count : 14 ZIP Code Frequency : 11 ZIP Code : 33146 Other Information NPANXX : 305456 County Population : 0 Switch CLLI (Common Language Location Identifier) : PMBHFLED0KD MSA CBSA (Core Based Statistical Area) : Miami-Fort Lauderdale-Pompano Beach, FL MSA CBSA Code (Core Based Statistical Area) : 33100 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : COMCAST PHONE OF FLORIDA, LLC - FL OCN (Operating Company Number) : 7562 Coverage Area Name : MIAMI Latitude : 25.7746 Longitude : -80.1903 ‹ previous : 305-455 next › : 305-456 Telephone Number List 305-456-0000 ~ 305-456-9999