| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (630) 257-70** | (630) 257-7000 - (630) 257-7097 | 68 |
| (630) 257-71** | (630) 257-7100 - (630) 257-7199 | 68 |
| (630) 257-72** | (630) 257-7200 - (630) 257-7297 | 71 |
| (630) 257-73** | (630) 257-7300 - (630) 257-7398 | 73 |
| (630) 257-74** | (630) 257-7401 - (630) 257-7499 | 69 |
| (630) 257-75** | (630) 257-7500 - (630) 257-7599 | 62 |
| (630) 257-76** | (630) 257-7600 - (630) 257-7699 | 74 |
| (630) 257-77** | (630) 257-7700 - (630) 257-7797 | 57 |
| (630) 257-78** | (630) 257-7801 - (630) 257-7899 | 72 |
| (630) 257-79** | (630) 257-7900 - (630) 257-7999 | 73 |
US Phone Directory: (630) 257-7***
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