| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (773) 307-40** | (773) 307-4005 - (773) 307-4092 | 20 |
| (773) 307-41** | (773) 307-4102 - (773) 307-4199 | 18 |
| (773) 307-42** | (773) 307-4201 - (773) 307-4291 | 23 |
| (773) 307-43** | (773) 307-4300 - (773) 307-4393 | 23 |
| (773) 307-44** | (773) 307-4402 - (773) 307-4499 | 16 |
| (773) 307-45** | (773) 307-4501 - (773) 307-4599 | 9 |
| (773) 307-46** | (773) 307-4612 - (773) 307-4697 | 17 |
| (773) 307-47** | (773) 307-4700 - (773) 307-4799 | 21 |
| (773) 307-48** | (773) 307-4806 - (773) 307-4898 | 13 |
| (773) 307-49** | (773) 307-4901 - (773) 307-4993 | 16 |
US Phone Directory: (773) 307-4***
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