| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (773) 278-60** | (773) 278-6000 - (773) 278-6099 | 69 |
| (773) 278-61** | (773) 278-6100 - (773) 278-6198 | 65 |
| (773) 278-62** | (773) 278-6200 - (773) 278-6299 | 65 |
| (773) 278-63** | (773) 278-6300 - (773) 278-6397 | 59 |
| (773) 278-64** | (773) 278-6400 - (773) 278-6498 | 57 |
| (773) 278-65** | (773) 278-6500 - (773) 278-6599 | 65 |
| (773) 278-66** | (773) 278-6600 - (773) 278-6696 | 65 |
| (773) 278-67** | (773) 278-6700 - (773) 278-6799 | 67 |
| (773) 278-68** | (773) 278-6800 - (773) 278-6898 | 71 |
| (773) 278-69** | (773) 278-6900 - (773) 278-6999 | 75 |
US Phone Directory: (773) 278-6***
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