Area Code 308-357 located in CEDAR RAPIDS, BOONE, NE, more detail is as below. Place NPA (Numbering Plan Area) : 308 NXX (Local Number Prefix) : 357 City : CEDAR RAPIDS County : BOONE State : NE (Nebraska) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 31011 LATA (Local Access Transport Area) : 646 Rate Center : BELGRADE ZIP Code Count : 7 ZIP Code Frequency : 5 ZIP Code : 68627 Other Information NPANXX : 308357 County Population : 0 Switch CLLI (Common Language Location Identifier) : CDRRNERDRS1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : GREAT PLAINS COMMUNICATIONS, INC. OCN (Operating Company Number) : 1577 Coverage Area Name : CEDAR RAPIDS Latitude : 41.5494 Longitude : -98.1462 ‹ previous : 308-355 next › : 308-357 Telephone Number List 308-357-0000 ~ 308-357-9999