Area Code 402-640 located in CLEARWATER, ANTELOPE, NE, more detail is as below. Place NPA (Numbering Plan Area) : 402 NXX (Local Number Prefix) : 640 City : CLEARWATER County : ANTELOPE State : NE (Nebraska) NXX Use Type : Wireless NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 31003 LATA (Local Access Transport Area) : 644 Rate Center : NORFOLK ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 68726 Other Information NPANXX : 402640 County Population : 0 Switch CLLI (Common Language Location Identifier) : NRFLNEAKCM1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : UNITED STATES CELLULAR - NE OCN (Operating Company Number) : 6263 Coverage Area Name : NORFOLK Latitude : 42.0289 Longitude : -97.3276 ‹ previous : 402-640 next › : 402-641 Telephone Number List 402-640-0000 ~ 402-640-9999