| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (650) 631-10** | (650) 631-1000 - (650) 631-1096 | 50 |
| (650) 631-11** | (650) 631-1100 - (650) 631-1199 | 36 |
| (650) 631-12** | (650) 631-1200 - (650) 631-1296 | 41 |
| (650) 631-13** | (650) 631-1300 - (650) 631-1394 | 42 |
| (650) 631-14** | (650) 631-1400 - (650) 631-1489 | 35 |
| (650) 631-15** | (650) 631-1500 - (650) 631-1599 | 44 |
| (650) 631-16** | (650) 631-1600 - (650) 631-1696 | 44 |
| (650) 631-17** | (650) 631-1701 - (650) 631-1799 | 45 |
| (650) 631-18** | (650) 631-1800 - (650) 631-1898 | 38 |
| (650) 631-19** | (650) 631-1900 - (650) 631-1996 | 38 |
US Phone Directory: (650) 631-1***
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