| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (773) 472-40** | (773) 472-4000 - (773) 472-4099 | 68 |
| (773) 472-41** | (773) 472-4101 - (773) 472-4199 | 77 |
| (773) 472-42** | (773) 472-4200 - (773) 472-4298 | 66 |
| (773) 472-43** | (773) 472-4302 - (773) 472-4399 | 66 |
| (773) 472-44** | (773) 472-4400 - (773) 472-4499 | 68 |
| (773) 472-45** | (773) 472-4500 - (773) 472-4598 | 76 |
| (773) 472-46** | (773) 472-4600 - (773) 472-4699 | 75 |
| (773) 472-47** | (773) 472-4700 - (773) 472-4799 | 77 |
| (773) 472-48** | (773) 472-4800 - (773) 472-4895 | 71 |
| (773) 472-49** | (773) 472-4900 - (773) 472-4995 | 75 |
US Phone Directory: (773) 472-4***
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