Area Code 309-201 located in PEORIA, PEORIA, IL, more detail is as below. Place NPA (Numbering Plan Area) : 309 NXX (Local Number Prefix) : 201 City : PEORIA County : PEORIA State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 2000-10-31 FIPS (Federal Information Processing Standards) : 17143 LATA (Local Access Transport Area) : 368 Rate Center : PEORIA ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 61603 Other Information NPANXX : 309201 County Population : 0 Switch CLLI (Common Language Location Identifier) : PEORILTC5MD MSA CBSA (Core Based Statistical Area) : Peoria, IL MSA CBSA Code (Core Based Statistical Area) : 37900 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 : PEKIN Latitude : 40.5628 Longitude : -89.6447 ‹ previous : 309-200 next › : 309-201 Telephone Number List 309-201-0000 ~ 309-201-9999