| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (773) 445-30** | (773) 445-3000 - (773) 445-3099 | 76 |
| (773) 445-31** | (773) 445-3100 - (773) 445-3199 | 77 |
| (773) 445-32** | (773) 445-3201 - (773) 445-3299 | 63 |
| (773) 445-33** | (773) 445-3300 - (773) 445-3399 | 70 |
| (773) 445-34** | (773) 445-3400 - (773) 445-3499 | 67 |
| (773) 445-35** | (773) 445-3500 - (773) 445-3599 | 59 |
| (773) 445-36** | (773) 445-3600 - (773) 445-3699 | 67 |
| (773) 445-37** | (773) 445-3700 - (773) 445-3798 | 71 |
| (773) 445-38** | (773) 445-3802 - (773) 445-3898 | 74 |
| (773) 445-39** | (773) 445-3901 - (773) 445-3997 | 66 |
US Phone Directory: (773) 445-3***
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