Area Code 309-758 located in ADAIR, MCDONOUGH, IL, more detail is as below. Place NPA (Numbering Plan Area) : 309 NXX (Local Number Prefix) : 758 City : ADAIR County : MCDONOUGH State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17109 LATA (Local Access Transport Area) : 368 Rate Center : TABLEGROVE ZIP Code Count : 5 ZIP Code Frequency : 2 ZIP Code : 61411 Other Information NPANXX : 309758 County Population : 0 Switch CLLI (Common Language Location Identifier) : TBGVILXDRS0 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 : MID CENTURY TELEPHONE CO-OPERATIVE OCN (Operating Company Number) : 1054 Coverage Area Name : TABLE GROVE Latitude : 40.3645 Longitude : -90.4254 ‹ previous : 309-757 next › : 309-758 Telephone Number List 309-758-0000 ~ 309-758-9999