| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (773) 966-30** | (773) 966-3003 - (773) 966-3099 | 73 |
| (773) 966-31** | (773) 966-3101 - (773) 966-3199 | 75 |
| (773) 966-32** | (773) 966-3200 - (773) 966-3299 | 80 |
| (773) 966-33** | (773) 966-3300 - (773) 966-3399 | 72 |
| (773) 966-34** | (773) 966-3400 - (773) 966-3499 | 74 |
| (773) 966-35** | (773) 966-3501 - (773) 966-3598 | 70 |
| (773) 966-36** | (773) 966-3604 - (773) 966-3696 | 65 |
| (773) 966-37** | (773) 966-3700 - (773) 966-3799 | 74 |
| (773) 966-38** | (773) 966-3800 - (773) 966-3899 | 53 |
| (773) 966-39** | (773) 966-3900 - (773) 966-3959 | 34 |
US Phone Directory: (773) 966-3***
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