| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (773) 478-90** | (773) 478-9000 - (773) 478-9099 | 65 |
| (773) 478-91** | (773) 478-9100 - (773) 478-9197 | 72 |
| (773) 478-92** | (773) 478-9200 - (773) 478-9298 | 66 |
| (773) 478-93** | (773) 478-9300 - (773) 478-9399 | 74 |
| (773) 478-94** | (773) 478-9400 - (773) 478-9498 | 71 |
| (773) 478-95** | (773) 478-9500 - (773) 478-9598 | 60 |
| (773) 478-96** | (773) 478-9600 - (773) 478-9699 | 67 |
| (773) 478-97** | (773) 478-9700 - (773) 478-9799 | 62 |
| (773) 478-98** | (773) 478-9800 - (773) 478-9899 | 66 |
| (773) 478-99** | (773) 478-9910 - (773) 478-9999 | 29 |
US Phone Directory: (773) 478-9***
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