| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (415) 554-10** | (415) 554-1000 - (415) 554-1000 | 1 |
| (415) 554-11** | (415) 554-1100 - (415) 554-1131 | 4 |
| (415) 554-12** | (415) 554-1200 - (415) 554-1286 | 6 |
| (415) 554-13** | (415) 554-1333 - (415) 554-1333 | 1 |
| (415) 554-14** | (415) 554-1444 - (415) 554-1480 | 3 |
| (415) 554-16** | (415) 554-1631 - (415) 554-1631 | 1 |
| (415) 554-17** | (415) 554-1713 - (415) 554-1777 | 7 |
| (415) 554-18** | (415) 554-1826 - (415) 554-1880 | 6 |
| (415) 554-19** | (415) 554-1901 - (415) 554-1998 | 38 |
US Phone Directory: (415) 554-1***
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