| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (773) 509-00** | (773) 509-0000 - (773) 509-0099 | 72 |
| (773) 509-01** | (773) 509-0100 - (773) 509-0199 | 66 |
| (773) 509-02** | (773) 509-0200 - (773) 509-0298 | 71 |
| (773) 509-03** | (773) 509-0301 - (773) 509-0399 | 74 |
| (773) 509-04** | (773) 509-0400 - (773) 509-0498 | 71 |
| (773) 509-05** | (773) 509-0500 - (773) 509-0599 | 73 |
| (773) 509-06** | (773) 509-0604 - (773) 509-0698 | 63 |
| (773) 509-07** | (773) 509-0701 - (773) 509-0799 | 75 |
| (773) 509-08** | (773) 509-0804 - (773) 509-0899 | 79 |
| (773) 509-09** | (773) 509-0900 - (773) 509-0998 | 80 |
US Phone Directory: (773) 509-0***
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