| 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 |
|---|---|
| 312-220-9951 | Cook, Chicago, IL |
| 312-220-9952 | Cook, Chicago, IL |
| 312-220-9953 | Cook, Chicago, IL |
| 312-220-9954 | Cook, Chicago, IL |
| 312-220-9955 | Cook, Chicago, IL |
| 312-220-9956 | Cook, Chicago, IL |
| 312-220-9957 | Cook, Chicago, IL |
| 312-220-9958 | Cook, Chicago, IL |
| 312-220-9959 | Cook, Chicago, IL |
| 312-220-9960 | Cook, Chicago, IL |
| 312-220-9961 | Cook, Chicago, IL |
| 312-220-9962 | Cook, Chicago, IL |
| 312-220-9963 | Cook, Chicago, IL |
| 312-220-9964 | Cook, Chicago, IL |
| 312-220-9965 | Cook, Chicago, IL |
| 312-220-9966 | Cook, Chicago, IL |
| 312-220-9967 | Cook, Chicago, IL |
| 312-220-9968 | Cook, Chicago, IL |
| 312-220-9969 | Cook, Chicago, IL |
| 312-220-9970 | Cook, Chicago, IL |
| 312-220-9971 | Cook, Chicago, IL |
| 312-220-9972 | Cook, Chicago, IL |
| 312-220-9973 | Cook, Chicago, IL |
| 312-220-9974 | Cook, Chicago, IL |
| 312-220-9975 | Cook, Chicago, IL |
| 312-220-9976 | Cook, Chicago, IL |
| 312-220-9977 | Cook, Chicago, IL |
| 312-220-9978 | Cook, Chicago, IL |
| 312-220-9979 | Cook, Chicago, IL |
| 312-220-9980 | Cook, Chicago, IL |
| 312-220-9981 | Cook, Chicago, IL |
| 312-220-9982 | Cook, Chicago, IL |
| 312-220-9983 | Cook, Chicago, IL |
| 312-220-9984 | Cook, Chicago, IL |
| 312-220-9985 | Cook, Chicago, IL |
| 312-220-9986 | Cook, Chicago, IL |
| 312-220-9987 | Cook, Chicago, IL |
| 312-220-9988 | Cook, Chicago, IL |
| 312-220-9989 | Cook, Chicago, IL |
| 312-220-9990 | Cook, Chicago, IL |
| 312-220-9991 | Cook, Chicago, IL |
| 312-220-9992 | Cook, Chicago, IL |
| 312-220-9993 | Cook, Chicago, IL |
| 312-220-9994 | Cook, Chicago, IL |
| 312-220-9995 | Cook, Chicago, IL |
| 312-220-9996 | Cook, Chicago, IL |
| 312-220-9997 | Cook, Chicago, IL |
| 312-220-9998 | Cook, Chicago, IL |
| 312-220-9999 | 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 |