Area Code 309-256 located in EAST PEORIA, TAZEWELL, IL, more detail is as below. Place NPA (Numbering Plan Area) : 309 NXX (Local Number Prefix) : 256 City : EAST PEORIA County : TAZEWELL State : IL (Illinois) NXX Use Type : Wireless NXX Intro Version : 1995-07-04 FIPS (Federal Information Processing Standards) : 17179 LATA (Local Access Transport Area) : 368 Rate Center : PEORIA ZIP Code Count : 1 ZIP Code Frequency : 33 ZIP Code : 61611 Other Information NPANXX : 309256 County Population : 0 Switch CLLI (Common Language Location Identifier) : PEORILENCM1 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 : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL OCN (Operating Company Number) : 6333 Coverage Area Name : PEORIA Latitude : 40.6927 Longitude : -89.5934 ‹ previous : 309-255 next › : 309-256 Telephone Number List 309-256-0000 ~ 309-256-9999