| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (415) 621-50** | (415) 621-5000 - (415) 621-5093 | 54 |
| (415) 621-51** | (415) 621-5100 - (415) 621-5198 | 56 |
| (415) 621-52** | (415) 621-5200 - (415) 621-5295 | 73 |
| (415) 621-53** | (415) 621-5301 - (415) 621-5399 | 73 |
| (415) 621-54** | (415) 621-5401 - (415) 621-5499 | 73 |
| (415) 621-55** | (415) 621-5500 - (415) 621-5597 | 68 |
| (415) 621-56** | (415) 621-5600 - (415) 621-5697 | 63 |
| (415) 621-57** | (415) 621-5700 - (415) 621-5798 | 71 |
| (415) 621-58** | (415) 621-5800 - (415) 621-5899 | 62 |
| (415) 621-59** | (415) 621-5900 - (415) 621-5999 | 67 |
US Phone Directory: (415) 621-5***
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