| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (312) 736-40** | (312) 736-4066 - (312) 736-4066 | 1 |
| (312) 736-42** | (312) 736-4235 - (312) 736-4243 | 2 |
| (312) 736-43** | (312) 736-4377 - (312) 736-4377 | 1 |
| (312) 736-44** | (312) 736-4476 - (312) 736-4478 | 2 |
| (312) 736-45** | (312) 736-4559 - (312) 736-4593 | 3 |
| (312) 736-46** | (312) 736-4640 - (312) 736-4697 | 5 |
| (312) 736-47** | (312) 736-4700 - (312) 736-4794 | 9 |
| (312) 736-48** | (312) 736-4825 - (312) 736-4897 | 4 |
| (312) 736-49** | (312) 736-4910 - (312) 736-4995 | 5 |
US Phone Directory: (312) 736-4***
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