Illinois Phone Numbers Beginning With 779 Area Code
| Prefix |
City |
| 779-200 | Rockford, Illinois |
| 779-201 | La Salle, Illinois |
| 779-202 | Galena, Illinois |
| 779-203 | Rockford, Illinois |
| 779-204 | Verona, Illinois |
| 779-205 | Joliet, Illinois |
| 779-206 | Joliet, Illinois |
| 779-207 | Rockford, Illinois |
| 779-208 | Rockford, Illinois |
| 779-209 | Sandwich, Illinois |
| 779-210 | Rockford, Illinois |
| 779-212 | Dekalb, Illinois |
| 779-213 | Oglesby, Illinois |
| 779-214 | Galena, Illinois |
| 779-215 | Tonica, Illinois |
| 779-216 | Frankfort, Illinois |
| 779-218 | Watseka, Illinois |
| 779-220 | Crystal Lake, Illinois |
| 779-221 | Rockford, Illinois |
| 779-222 | Sycamore, Illinois |
| 779-223 | Onarga, Illinois |
| 779-225 | Joliet, Illinois |
| 779-226 | Polo, Illinois |
| 779-227 | Joliet, Illinois |
| 779-228 | Mazon, Illinois |
| 779-229 | Depue, Illinois |
| 779-230 | Joliet, Illinois |
| 779-231 | Joliet, Illinois |
| 779-232 | Wilmington, Illinois |
| 779-233 | Joliet, Illinois |
| 779-234 | Plainfield, Illinois |
| 779-235 | Crescent City, Illinois |
| 779-236 | Kankakee, Illinois |
| 779-237 | Streator, Illinois |
| 779-238 | Rockford, Illinois |
| 779-239 | Princeton, Illinois |
| 779-240 | Kankakee, Illinois |
| 779-241 | Morris, Illinois |
| 779-242 | Joliet, Illinois |
| 779-243 | Frankfort, Illinois |
| 779-244 | Mchenry, Illinois |
| 779-245 | Sterling, Illinois |
| 779-246 | Rochelle, Illinois |
| 779-247 | Woodstock, Illinois |
| 779-248 | Galena, Illinois |
| 779-249 | Dwight, Illinois |
| 779-250 | Sterling, Illinois |
| 779-251 | Dixon, Illinois |
| 779-252 | Plainfield, Illinois |
| 779-253 | South Beloit, Illinois |
| 779-254 | Frankfort, Illinois |
| 779-255 | Dekalb, Illinois |
| 779-256 | Rockford, Illinois |
| 779-257 | Wilmington, Illinois |
| 779-258 | Herscher, Illinois |
| 779-259 | Manteno, Illinois |
| 779-260 | Joliet, Illinois |
| 779-261 | Fairbury, Illinois |
| 779-262 | Oglesby, Illinois |
| 779-263 | Plainfield, Illinois |
| 779-279 | Joliet, Illinois |
| 779-287 | Union, Illinois |
| 779-300 | Rockford, Illinois |
| 779-301 | Kankakee, Illinois |
| 779-302 | Woodstock, Illinois |
| 779-303 | Plainfield, Illinois |
| 779-324 | Frankfort, Illinois |
| 779-333 | Frankfort, Illinois |
| 779-348 | Rockford, Illinois |
| 779-368 | Newmilford, Illinois |
| 779-379 | Joliet, Illinois |
| 779-382 | Genoa, Illinois |
| 779-400 | Dekalb, Illinois |
| 779-423 | Rockford, Illinois |
| 779-429 | Wilmington, Illinois |
| 779-432 | Sheffield, Illinois |
| 779-435 | Joliet, Illinois |
| 779-444 | Wonder Lake, Illinois |
| 779-456 | Joliet, Illinois |
| 779-475 | South Beloit, Illinois |
| 779-500 | Rockford, Illinois |
| 779-513 | Rockford, Illinois |
| 779-529 | Manteno, Illinois |
| 779-537 | Rockford, Illinois |
| 779-545 | Mount Morris, Illinois |
| 779-548 | Marengo, Illinois |
| 779-552 | Belvidere, Illinois |
| 779-600 | Cissnapark, Illinois |
| 779-601 | La Salle, Illinois |
| 779-666 | Rockford, Illinois |
| 779-696 | Rockford, Illinois |
| 779-701 | Kankakee, Illinois |
| 779-702 | Joliet, Illinois |
| 779-703 | Joliet, Illinois |
| 779-704 | Mchenry, Illinois |
| 779-706 | Sandwich, Illinois |
| 779-707 | Joliet, Illinois |
| 779-713 | Woodstock, Illinois |
| 779-717 | Spring Valley, Illinois |
| 779-770 | Rockford, Illinois |
| 779-771 | Rockford, Illinois |
| 779-772 | Rockford, Illinois |
| 779-774 | Rockford, Illinois |
| 779-777 | Dekalb, Illinois |
| 779-800 | Crystal Lake, Illinois |
| 779-801 | Kankakee, Illinois |
| 779-803 | New Lenox, Illinois |
| 779-804 | Pontiac, Illinois |
| 779-861 | Dixon, Illinois |
| 779-875 | Joliet, Illinois |
| 779-888 | Rockford, Illinois |
| 779-901 | Marengo, Illinois |
| 779-903 | Braidwood, Illinois |
| 779-915 | Woodstock, Illinois |
| 779-931 | Sandwich, Illinois |
| 779-939 | Joliet, Illinois |
| 779-958 | Ua, Illinois |
| 779-959 | Ua, Illinois |
| 779-970 | Rockford, Illinois |
| 779-978 | Sandwich, Illinois |
| 779-994 | Crystal Lake, Illinois |
| 779-999 | Newark, Illinois |