| Prefix 312-987 | |
|---|---|
| Type | Landline |
| Introduced | 02/04/1994 |
| company | Ameritech Illinois |
| County | Cook |
| State | Illinois |
| Country | United States |
| Primary city | Chicago, IL |
| ZIP Code | 60603 |
| Phone Number | Possible Location |
|---|---|
| 312-987-0301 | Cook, Chicago, IL |
| 312-987-0302 | Cook, Chicago, IL |
| 312-987-0303 | Cook, Chicago, IL |
| 312-987-0304 | Cook, Chicago, IL |
| 312-987-0305 | Cook, Chicago, IL |
| 312-987-0306 | Cook, Chicago, IL |
| 312-987-0307 | Cook, Chicago, IL |
| 312-987-0308 | Cook, Chicago, IL |
| 312-987-0309 | Cook, Chicago, IL |
| 312-987-0310 | Cook, Chicago, IL |
| 312-987-0311 | Cook, Chicago, IL |
| 312-987-0312 | Cook, Chicago, IL |
| 312-987-0313 | Cook, Chicago, IL |
| 312-987-0314 | Cook, Chicago, IL |
| 312-987-0315 | Cook, Chicago, IL |
| 312-987-0316 | Cook, Chicago, IL |
| 312-987-0317 | Cook, Chicago, IL |
| 312-987-0318 | Cook, Chicago, IL |
| 312-987-0319 | Cook, Chicago, IL |
| 312-987-0320 | Cook, Chicago, IL |
| 312-987-0321 | Cook, Chicago, IL |
| 312-987-0322 | Cook, Chicago, IL |
| 312-987-0323 | Cook, Chicago, IL |
| 312-987-0324 | Cook, Chicago, IL |
| 312-987-0325 | Cook, Chicago, IL |
| 312-987-0326 | Cook, Chicago, IL |
| 312-987-0327 | Cook, Chicago, IL |
| 312-987-0328 | Cook, Chicago, IL |
| 312-987-0329 | Cook, Chicago, IL |
| 312-987-0330 | Cook, Chicago, IL |
| 312-987-0331 | Cook, Chicago, IL |
| 312-987-0332 | Cook, Chicago, IL |
| 312-987-0333 | Cook, Chicago, IL |
| 312-987-0334 | Cook, Chicago, IL |
| 312-987-0335 | Cook, Chicago, IL |
| 312-987-0336 | Cook, Chicago, IL |
| 312-987-0337 | Cook, Chicago, IL |
| 312-987-0338 | Cook, Chicago, IL |
| 312-987-0339 | Cook, Chicago, IL |
| 312-987-0340 | Cook, Chicago, IL |
| 312-987-0341 | Cook, Chicago, IL |
| 312-987-0342 | Cook, Chicago, IL |
| 312-987-0343 | Cook, Chicago, IL |
| 312-987-0344 | Cook, Chicago, IL |
| 312-987-0345 | Cook, Chicago, IL |
| 312-987-0346 | Cook, Chicago, IL |
| 312-987-0347 | Cook, Chicago, IL |
| 312-987-0348 | Cook, Chicago, IL |
| 312-987-0349 | Cook, Chicago, IL |
| 312-987-0350 | 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 |