Area Code 309-548 located in ROSEVILLE, WARREN, IL, more detail is as below. Place NPA (Numbering Plan Area) : 309 NXX (Local Number Prefix) : 548 City : ROSEVILLE County : WARREN State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 4/28/2006 FIPS (Federal Information Processing Standards) : 17187 LATA (Local Access Transport Area) : 977 Rate Center : ROSEVILLE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 61473 Other Information NPANXX : 309548 County Population : 0 Switch CLLI (Common Language Location Identifier) : MCMBILXDSMD MSA CBSA (Core Based Statistical Area) : Galesburg, IL MSA CBSA Code (Core Based Statistical Area) : 23660 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL OCN (Operating Company Number) : 846F Coverage Area Name : ROSEVILLE Latitude : 40.7327 Longitude : -90.6656 ‹ previous : 309-547 next › : 309-550 Telephone Number List 309-548-0000 ~ 309-548-9999