| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (650) 577-10** | (650) 577-1000 - (650) 577-1098 | 51 |
| (650) 577-11** | (650) 577-1100 - (650) 577-1195 | 50 |
| (650) 577-12** | (650) 577-1200 - (650) 577-1294 | 41 |
| (650) 577-13** | (650) 577-1301 - (650) 577-1399 | 51 |
| (650) 577-14** | (650) 577-1400 - (650) 577-1498 | 35 |
| (650) 577-15** | (650) 577-1500 - (650) 577-1598 | 39 |
| (650) 577-16** | (650) 577-1602 - (650) 577-1699 | 36 |
| (650) 577-17** | (650) 577-1700 - (650) 577-1798 | 42 |
| (650) 577-18** | (650) 577-1801 - (650) 577-1896 | 36 |
| (650) 577-19** | (650) 577-1900 - (650) 577-1998 | 56 |
US Phone Directory: (650) 577-1***
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