| General Information | |
|---|---|
| Country | United States |
| State/Province | Illinois |
| Major City | Chicago |
| Time Zone | Central (UTC-06:00) |
| Current Local Time | 20:40 |
| Prefix | County | Primary City |
|---|---|---|
| 773-201 | Cook | Chicago |
| 773-202 | Cook | Chicago |
| 773-203 | Cook | Chicago |
| 773-204 | Cook | Chicago |
| 773-205 | Cook | Chicago |
| 773-206 | Cook | Chicago |
| 773-207 | Cook | Chicago |
| 773-208 | Cook | Chicago |
| 773-209 | Cook | Chicago |
| 773-210 | Cook | Chicago |
| 773-212 | Cook | Chicago |
| 773-213 | Cook | Chicago |
| 773-214 | Cook | Chicago |
| 773-215 | Cook | Chicago |
| 773-216 | Cook | Chicago |
| 773-217 | Cook | Chicago |
| 773-218 | Cook | Chicago |
| 773-219 | Cook | Chicago |
| 773-220 | Cook | Chicago |
| 773-221 | Cook | Chicago |
| 773-222 | Cook | Chicago |
| 773-223 | Cook | Chicago |
| 773-224 | Cook | Chicago |
| 773-225 | Cook | Chicago |
| 773-226 | Cook | Chicago |
| 773-227 | Cook | Chicago |
| 773-228 | Cook | Chicago |
| 773-229 | Cook | Summit Argo |
| 773-230 | Cook | Chicago |
| 773-231 | Cook | Chicago |
| 773-232 | Cook | Chicago |
| 773-233 | Cook | Evergreen Park |
| 773-234 | Cook | Chicago |
| 773-235 | Cook | Chicago |
| 773-236 | Cook | Chicago |
| 773-237 | Cook | Chicago |
| 773-238 | Cook | Evergreen Park |
| 773-239 | Cook | Evergreen Park |
| 773-240 | Cook | Chicago |
| 773-241 | Cook | Chicago |
| 773-242 | Cook | Cicero |
| 773-243 | Dupage | Bensenville |
| 773-244 | Cook | Chicago |
| 773-245 | Cook | Chicago |
| 773-246 | Cook | Chicago |
| 773-247 | Cook | Chicago |
| 773-248 | Cook | Chicago |
| 773-249 | Cook | Chicago |
| 773-250 | Cook | Chicago |
| 773-251 | Cook | Chicago |