| Prefix 312-220 | |
|---|---|
| Type | Landline |
| Introduced | 02/04/1994 |
| company | Ameritech Illinois |
| County | Cook |
| State | Illinois |
| Country | United States |
| Primary city | Chicago, IL |
| ZIP Code | 60654 |
| Phone Number | Possible Location |
|---|---|
| 312-220-0301 | Cook, Chicago, IL |
| 312-220-0302 | Cook, Chicago, IL |
| 312-220-0303 | Cook, Chicago, IL |
| 312-220-0304 | Cook, Chicago, IL |
| 312-220-0305 | Cook, Chicago, IL |
| 312-220-0306 | Cook, Chicago, IL |
| 312-220-0307 | Cook, Chicago, IL |
| 312-220-0308 | Cook, Chicago, IL |
| 312-220-0309 | Cook, Chicago, IL |
| 312-220-0310 | Cook, Chicago, IL |
| 312-220-0311 | Cook, Chicago, IL |
| 312-220-0312 | Cook, Chicago, IL |
| 312-220-0313 | Cook, Chicago, IL |
| 312-220-0314 | Cook, Chicago, IL |
| 312-220-0315 | Cook, Chicago, IL |
| 312-220-0316 | Cook, Chicago, IL |
| 312-220-0317 | Cook, Chicago, IL |
| 312-220-0318 | Cook, Chicago, IL |
| 312-220-0319 | Cook, Chicago, IL |
| 312-220-0320 | Cook, Chicago, IL |
| 312-220-0321 | Cook, Chicago, IL |
| 312-220-0322 | Cook, Chicago, IL |
| 312-220-0323 | Cook, Chicago, IL |
| 312-220-0324 | Cook, Chicago, IL |
| 312-220-0325 | Cook, Chicago, IL |
| 312-220-0326 | Cook, Chicago, IL |
| 312-220-0327 | Cook, Chicago, IL |
| 312-220-0328 | Cook, Chicago, IL |
| 312-220-0329 | Cook, Chicago, IL |
| 312-220-0330 | Cook, Chicago, IL |
| 312-220-0331 | Cook, Chicago, IL |
| 312-220-0332 | Cook, Chicago, IL |
| 312-220-0333 | Cook, Chicago, IL |
| 312-220-0334 | Cook, Chicago, IL |
| 312-220-0335 | Cook, Chicago, IL |
| 312-220-0336 | Cook, Chicago, IL |
| 312-220-0337 | Cook, Chicago, IL |
| 312-220-0338 | Cook, Chicago, IL |
| 312-220-0339 | Cook, Chicago, IL |
| 312-220-0340 | Cook, Chicago, IL |
| 312-220-0341 | Cook, Chicago, IL |
| 312-220-0342 | Cook, Chicago, IL |
| 312-220-0343 | Cook, Chicago, IL |
| 312-220-0344 | Cook, Chicago, IL |
| 312-220-0345 | Cook, Chicago, IL |
| 312-220-0346 | Cook, Chicago, IL |
| 312-220-0347 | Cook, Chicago, IL |
| 312-220-0348 | Cook, Chicago, IL |
| 312-220-0349 | Cook, Chicago, IL |
| 312-220-0350 | Cook, Chicago, IL |
The area code prefix is introduced in 02/04/1994, the phone number type is Landline. The major cities in the area are Chicago, IL
| Area Code 312 | |
|---|---|
| Time Zone | Central (UTC-06:00) |
| Major City | Chicago |
| State/Province | Illinois |
| Country | United States |