Area Code 309-389 located in PEORIA, PEORIA, IL, more detail is as below. Place NPA (Numbering Plan Area) : 309 NXX (Local Number Prefix) : 389 City : PEORIA County : PEORIA State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17143 LATA (Local Access Transport Area) : 368 Rate Center : GLASFORD ZIP Code Count : 21 ZIP Code Frequency : 2 ZIP Code : 61602 Other Information NPANXX : 309389 County Population : 0 Switch CLLI (Common Language Location Identifier) : GLFDILXDDS0 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 : GLASFORD TELEPHONE CO. OCN (Operating Company Number) : 1017 Coverage Area Name : GLASFORD Latitude : 40.5609 Longitude : -89.8137 ‹ previous : 309-389 next › : 309-389 Telephone Number List 309-389-0000 ~ 309-389-9999