Area Code 303-206 located in LITTLETON, ARAPAHOE, CO, more detail is as below. Place NPA (Numbering Plan Area) : 303 NXX (Local Number Prefix) : 206 City : LITTLETON County : ARAPAHOE State : CO (Colorado) NXX Use Type : Wireless NXX Intro Version : 1996-04-15 FIPS (Federal Information Processing Standards) : 08005 LATA (Local Access Transport Area) : 656 Rate Center : DENVER ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 80121 Other Information NPANXX : 303206 County Population : 0 Switch CLLI (Common Language Location Identifier) : GRVGCOAW0MD MSA CBSA (Core Based Statistical Area) : Denver-Aurora, CO MSA CBSA Code (Core Based Statistical Area) : 19740 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : USA MOBILITY WIRELESS, INC. OCN (Operating Company Number) : 6630 Coverage Area Name : DENVER Latitude : 39.7454 Longitude : -105.0512 ‹ previous : 303-205 next › : 303-207 Telephone Number List 303-206-0000 ~ 303-206-9999