| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (773) 944-10** | (773) 944-1000 - (773) 944-1099 | 93 |
| (773) 944-11** | (773) 944-1100 - (773) 944-1199 | 94 |
| (773) 944-12** | (773) 944-1200 - (773) 944-1298 | 96 |
| (773) 944-13** | (773) 944-1300 - (773) 944-1399 | 87 |
| (773) 944-14** | (773) 944-1400 - (773) 944-1498 | 76 |
| (773) 944-15** | (773) 944-1500 - (773) 944-1599 | 71 |
| (773) 944-16** | (773) 944-1603 - (773) 944-1681 | 8 |
| (773) 944-17** | (773) 944-1723 - (773) 944-1770 | 4 |
| (773) 944-18** | (773) 944-1802 - (773) 944-1876 | 8 |
| (773) 944-19** | (773) 944-1906 - (773) 944-1998 | 10 |
US Phone Directory: (773) 944-1***
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