Area Code 779 and Prefix Lookup

Prefix City
779-200 Rockford
779-201 La Salle
779-202 Galena
779-203 Rockford
779-204 Verona
779-205 Joliet
779-206 Joliet
779-207 Rockford
779-208 Rockford
779-209 Sandwich
779-210 Rockford
779-212 Dekalb
779-213 Oglesby
779-214 Galena
779-215 Tonica
779-216 Frankfort
779-218 Watseka
779-220 Crystal Lake
779-221 Rockford
779-222 Dekalb
779-223 Onarga
779-225 Joliet
779-226 Polo
779-227 Joliet
779-228 Mazon
779-229 Spring Valley
779-230 Joliet
779-231 Joliet
779-232 Wilmington
779-233 Joliet
779-234 Plainfield
779-235 Crescent City
779-236 Kankakee
779-237 Ancona
779-238 Rockford
779-239 Princeton
779-240 Kankakee
779-241 Morris
779-245 Sterling
779-248 Galena
779-251 Dixon
779-252 Plainfield
779-253 South Beloit
779-254 Frankfort
779-279 Joliet
779-287 Union
779-300 Rockford
779-301 Kankakee
779-302 Woodstock
779-303 Plainfield
779-324 Frankfort
779-333 Frankfort
779-348 Rockford
779-368 Rockford
779-379 Joliet
779-382 Genoa
779-400 Dekalb
779-423 Rockford
779-429 Wilmington
779-432 Sheffield
779-435 Joliet
779-444 Wonder Lake
779-456 Joliet
779-475 South Beloit
779-500 Rockford
779-513 Rockford
779-529 Manteno
779-537 Rockford
779-545 Mount Morris
779-548 Marengo
779-552 Belvidere
779-601 La Salle
779-696 Rockford
779-701 Kankakee
779-702 Joliet
779-703 Joliet
779-704 Mchenry
779-706 Sandwich
779-707 Joliet
779-713 Woodstock
779-717 Spring Valley
779-770 Rockford
779-771 Rockford
779-772 Rockford
779-774 Rockford
779-777 Dekalb
779-800 Crystal Lake
779-801 Kankakee
779-803 New Lenox
779-804 Pontiac
779-861 Dixon
779-875 Joliet
779-888 Rockford
779-901 Marengo
779-903 Braidwood
779-915 Woodstock
779-931 Sandwich
779-939 Joliet
779-970 Rockford
779-978 Sandwich
779-994 Crystal Lake
779-999 Newark
779-242 Joliet
779-243 Frankfort
779-244 Mchenry
779-246 Ogle
779-247 Mchenry
779-263 Will
779-666 Rockford