Area Code 414-303 located in OSHKOSH, WINNEBAGO, WI, more detail is as below. Place NPA (Numbering Plan Area) : 414 NXX (Local Number Prefix) : 303 City : OSHKOSH County : WINNEBAGO State : WI (Wisconsin) NXX Use Type : Wireless NXX Intro Version : 1998-01-25 FIPS (Federal Information Processing Standards) : 55139 LATA (Local Access Transport Area) : 356 Rate Center : MILWAUKZN1 ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 54904 Other Information NPANXX : 414303 Switch CLLI (Common Language Location Identifier) : NWBLWICYCM1 MSA CBSA (Core Based Statistical Area) : Oshkosh-Neenah, WI MSA CBSA Code (Core Based Statistical Area) : 36780 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : UNITED STATES CELLULAR CORP. - WISCONSIN OCN (Operating Company Number) : 6274 Coverage Area Name : MILWAUKEE Latitude : 43.0428 Longitude : -87.9488 ‹ previous : 414-302 next › : 414-303 Telephone Number List 414-303-0000 ~ 414-303-9999