Area Code 309-244 located in DELAVAN, TAZEWELL, IL, more detail is as below. Place NPA (Numbering Plan Area) : 309 NXX (Local Number Prefix) : 244 City : DELAVAN County : TAZEWELL State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17179 LATA (Local Access Transport Area) : 368 Rate Center : DELAVAN ZIP Code Count : 1036 ZIP Code Frequency : 98 ZIP Code : 61734 Other Information NPANXX : 309244 County Population : 0 Switch CLLI (Common Language Location Identifier) : DLVNILDERS0 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 : AMERITECH ILLINOIS OCN (Operating Company Number) : 9329 Coverage Area Name : DELAVAN Latitude : 40.3707 Longitude : -89.5478 ‹ previous : 309-243 next › : 309-245 Telephone Number List 309-244-0000 ~ 309-244-9999