| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (650) 257-70** | (650) 257-7000 - (650) 257-7099 | 88 |
| (650) 257-71** | (650) 257-7100 - (650) 257-7199 | 91 |
| (650) 257-72** | (650) 257-7200 - (650) 257-7299 | 91 |
| (650) 257-73** | (650) 257-7300 - (650) 257-7399 | 87 |
| (650) 257-74** | (650) 257-7400 - (650) 257-7499 | 90 |
| (650) 257-75** | (650) 257-7500 - (650) 257-7597 | 86 |
| (650) 257-76** | (650) 257-7600 - (650) 257-7699 | 86 |
| (650) 257-77** | (650) 257-7700 - (650) 257-7799 | 90 |
| (650) 257-78** | (650) 257-7800 - (650) 257-7899 | 85 |
| (650) 257-79** | (650) 257-7900 - (650) 257-7999 | 88 |
US Phone Directory: (650) 257-7***
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