| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (773) 434-80** | (773) 434-8000 - (773) 434-8097 | 73 |
| (773) 434-81** | (773) 434-8100 - (773) 434-8199 | 79 |
| (773) 434-82** | (773) 434-8200 - (773) 434-8299 | 62 |
| (773) 434-83** | (773) 434-8300 - (773) 434-8399 | 74 |
| (773) 434-84** | (773) 434-8400 - (773) 434-8499 | 74 |
| (773) 434-85** | (773) 434-8500 - (773) 434-8598 | 72 |
| (773) 434-86** | (773) 434-8600 - (773) 434-8699 | 73 |
| (773) 434-87** | (773) 434-8700 - (773) 434-8799 | 81 |
| (773) 434-88** | (773) 434-8800 - (773) 434-8898 | 77 |
| (773) 434-89** | (773) 434-8900 - (773) 434-8999 | 78 |
US Phone Directory: (773) 434-8***
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