| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (773) 991-70** | (773) 991-7006 - (773) 991-7099 | 28 |
| (773) 991-71** | (773) 991-7101 - (773) 991-7187 | 22 |
| (773) 991-72** | (773) 991-7220 - (773) 991-7295 | 11 |
| (773) 991-73** | (773) 991-7300 - (773) 991-7398 | 23 |
| (773) 991-74** | (773) 991-7403 - (773) 991-7498 | 20 |
| (773) 991-75** | (773) 991-7501 - (773) 991-7571 | 23 |
| (773) 991-76** | (773) 991-7603 - (773) 991-7694 | 24 |
| (773) 991-77** | (773) 991-7705 - (773) 991-7797 | 22 |
| (773) 991-78** | (773) 991-7805 - (773) 991-7898 | 27 |
| (773) 991-79** | (773) 991-7900 - (773) 991-7997 | 28 |
US Phone Directory: (773) 991-7***
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