| 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 |
|---|---|
| 312-987-9901 | Cook, Chicago, IL |
| 312-987-9902 | Cook, Chicago, IL |
| 312-987-9903 | Cook, Chicago, IL |
| 312-987-9904 | Cook, Chicago, IL |
| 312-987-9905 | Cook, Chicago, IL |
| 312-987-9906 | Cook, Chicago, IL |
| 312-987-9907 | Cook, Chicago, IL |
| 312-987-9908 | Cook, Chicago, IL |
| 312-987-9909 | Cook, Chicago, IL |
| 312-987-9910 | Cook, Chicago, IL |
| 312-987-9911 | Cook, Chicago, IL |
| 312-987-9912 | Cook, Chicago, IL |
| 312-987-9913 | Cook, Chicago, IL |
| 312-987-9914 | Cook, Chicago, IL |
| 312-987-9915 | Cook, Chicago, IL |
| 312-987-9916 | Cook, Chicago, IL |
| 312-987-9917 | Cook, Chicago, IL |
| 312-987-9918 | Cook, Chicago, IL |
| 312-987-9919 | Cook, Chicago, IL |
| 312-987-9920 | Cook, Chicago, IL |
| 312-987-9921 | Cook, Chicago, IL |
| 312-987-9922 | Cook, Chicago, IL |
| 312-987-9923 | Cook, Chicago, IL |
| 312-987-9924 | Cook, Chicago, IL |
| 312-987-9925 | Cook, Chicago, IL |
| 312-987-9926 | Cook, Chicago, IL |
| 312-987-9927 | Cook, Chicago, IL |
| 312-987-9928 | Cook, Chicago, IL |
| 312-987-9929 | Cook, Chicago, IL |
| 312-987-9930 | Cook, Chicago, IL |
| 312-987-9931 | Cook, Chicago, IL |
| 312-987-9932 | Cook, Chicago, IL |
| 312-987-9933 | Cook, Chicago, IL |
| 312-987-9934 | Cook, Chicago, IL |
| 312-987-9935 | Cook, Chicago, IL |
| 312-987-9936 | Cook, Chicago, IL |
| 312-987-9937 | Cook, Chicago, IL |
| 312-987-9938 | Cook, Chicago, IL |
| 312-987-9939 | Cook, Chicago, IL |
| 312-987-9940 | Cook, Chicago, IL |
| 312-987-9941 | Cook, Chicago, IL |
| 312-987-9942 | Cook, Chicago, IL |
| 312-987-9943 | Cook, Chicago, IL |
| 312-987-9944 | Cook, Chicago, IL |
| 312-987-9945 | Cook, Chicago, IL |
| 312-987-9946 | Cook, Chicago, IL |
| 312-987-9947 | Cook, Chicago, IL |
| 312-987-9948 | Cook, Chicago, IL |
| 312-987-9949 | Cook, Chicago, IL |
| 312-987-9950 | 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 |