| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (312) 663-90** | (312) 663-9011 - (312) 663-9095 | 17 |
| (312) 663-91** | (312) 663-9100 - (312) 663-9197 | 14 |
| (312) 663-92** | (312) 663-9200 - (312) 663-9298 | 24 |
| (312) 663-93** | (312) 663-9301 - (312) 663-9399 | 16 |
| (312) 663-94** | (312) 663-9400 - (312) 663-9494 | 15 |
| (312) 663-95** | (312) 663-9500 - (312) 663-9594 | 12 |
| (312) 663-96** | (312) 663-9600 - (312) 663-9687 | 9 |
| (312) 663-97** | (312) 663-9708 - (312) 663-9797 | 8 |
| (312) 663-98** | (312) 663-9800 - (312) 663-9877 | 7 |
| (312) 663-99** | (312) 663-9900 - (312) 663-9986 | 10 |
US Phone Directory: (312) 663-9***
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