| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (415) 203-10** | (415) 203-1002 - (415) 203-1099 | 23 |
| (415) 203-11** | (415) 203-1101 - (415) 203-1194 | 21 |
| (415) 203-12** | (415) 203-1203 - (415) 203-1296 | 32 |
| (415) 203-13** | (415) 203-1309 - (415) 203-1399 | 13 |
| (415) 203-14** | (415) 203-1404 - (415) 203-1497 | 13 |
| (415) 203-15** | (415) 203-1503 - (415) 203-1592 | 11 |
| (415) 203-16** | (415) 203-1604 - (415) 203-1693 | 20 |
| (415) 203-17** | (415) 203-1710 - (415) 203-1772 | 14 |
| (415) 203-18** | (415) 203-1804 - (415) 203-1878 | 9 |
| (415) 203-19** | (415) 203-1907 - (415) 203-1996 | 19 |
US Phone Directory: (415) 203-1***
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