Area Code 309-333 located in ADAIR, MCDONOUGH, IL, more detail is as below. Place NPA (Numbering Plan Area) : 309 NXX (Local Number Prefix) : 333 City : ADAIR County : MCDONOUGH State : IL (Illinois) NXX Use Type : Wireless NXX Intro Version : 1998-11-20 FIPS (Federal Information Processing Standards) : 17109 LATA (Local Access Transport Area) : 977 Rate Center : MACOMB ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 61411 Other Information NPANXX : 309333 County Population : 0 Switch CLLI (Common Language Location Identifier) : BSHNILAA1MD MSA CBSA (Core Based Statistical Area) : Macomb, IL MSA CBSA Code (Core Based Statistical Area) : 31380 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : UNITED STATES CELLULAR CORP. - ILLINOIS OCN (Operating Company Number) : 6265 Coverage Area Name : MACOMB Latitude : 40.4557 Longitude : -90.6682 ‹ previous : 309-333 next › : 309-334 Telephone Number List 309-333-0000 ~ 309-333-9999