| Prefix 312-207 | |
|---|---|
| Type | Landline |
| Introduced | 10/11/1997 |
| company | Ameritech Illinois |
| County | Cook |
| State | Illinois |
| Country | United States |
| Primary city | Chicago, IL |
| ZIP Code | 60661 |
| Phone Number | Possible Location |
|---|---|
| 312-207-0301 | Cook, Chicago, IL |
| 312-207-0302 | Cook, Chicago, IL |
| 312-207-0303 | Cook, Chicago, IL |
| 312-207-0304 | Cook, Chicago, IL |
| 312-207-0305 | Cook, Chicago, IL |
| 312-207-0306 | Cook, Chicago, IL |
| 312-207-0307 | Cook, Chicago, IL |
| 312-207-0308 | Cook, Chicago, IL |
| 312-207-0309 | Cook, Chicago, IL |
| 312-207-0310 | Cook, Chicago, IL |
| 312-207-0311 | Cook, Chicago, IL |
| 312-207-0312 | Cook, Chicago, IL |
| 312-207-0313 | Cook, Chicago, IL |
| 312-207-0314 | Cook, Chicago, IL |
| 312-207-0315 | Cook, Chicago, IL |
| 312-207-0316 | Cook, Chicago, IL |
| 312-207-0317 | Cook, Chicago, IL |
| 312-207-0318 | Cook, Chicago, IL |
| 312-207-0319 | Cook, Chicago, IL |
| 312-207-0320 | Cook, Chicago, IL |
| 312-207-0321 | Cook, Chicago, IL |
| 312-207-0322 | Cook, Chicago, IL |
| 312-207-0323 | Cook, Chicago, IL |
| 312-207-0324 | Cook, Chicago, IL |
| 312-207-0325 | Cook, Chicago, IL |
| 312-207-0326 | Cook, Chicago, IL |
| 312-207-0327 | Cook, Chicago, IL |
| 312-207-0328 | Cook, Chicago, IL |
| 312-207-0329 | Cook, Chicago, IL |
| 312-207-0330 | Cook, Chicago, IL |
| 312-207-0331 | Cook, Chicago, IL |
| 312-207-0332 | Cook, Chicago, IL |
| 312-207-0333 | Cook, Chicago, IL |
| 312-207-0334 | Cook, Chicago, IL |
| 312-207-0335 | Cook, Chicago, IL |
| 312-207-0336 | Cook, Chicago, IL |
| 312-207-0337 | Cook, Chicago, IL |
| 312-207-0338 | Cook, Chicago, IL |
| 312-207-0339 | Cook, Chicago, IL |
| 312-207-0340 | Cook, Chicago, IL |
| 312-207-0341 | Cook, Chicago, IL |
| 312-207-0342 | Cook, Chicago, IL |
| 312-207-0343 | Cook, Chicago, IL |
| 312-207-0344 | Cook, Chicago, IL |
| 312-207-0345 | Cook, Chicago, IL |
| 312-207-0346 | Cook, Chicago, IL |
| 312-207-0347 | Cook, Chicago, IL |
| 312-207-0348 | Cook, Chicago, IL |
| 312-207-0349 | Cook, Chicago, IL |
| 312-207-0350 | Cook, Chicago, IL |
The area code prefix is introduced in 10/11/1997, 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 |