Area Code 308-428 located in GREELEY, GREELEY, NE, more detail is as below. Place NPA (Numbering Plan Area) : 308 NXX (Local Number Prefix) : 428 City : GREELEY County : GREELEY State : NE (Nebraska) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 31077 LATA (Local Access Transport Area) : 646 Rate Center : GREELEY ZIP Code Count : 336 ZIP Code Frequency : 100 ZIP Code : 68842 Other Information NPANXX : 308428 County Population : 0 Switch CLLI (Common Language Location Identifier) : GRELNEXHDS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE OCN (Operating Company Number) : 1128 Coverage Area Name : GREELEY Latitude : 41.5508 Longitude : -98.5256 ‹ previous : 308-425 next › : 308-430 Telephone Number List 308-428-0000 ~ 308-428-9999