| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (415) 931-30** | (415) 931-3001 - (415) 931-3099 | 72 |
| (415) 931-31** | (415) 931-3100 - (415) 931-3199 | 80 |
| (415) 931-32** | (415) 931-3200 - (415) 931-3298 | 73 |
| (415) 931-33** | (415) 931-3300 - (415) 931-3399 | 75 |
| (415) 931-34** | (415) 931-3400 - (415) 931-3499 | 70 |
| (415) 931-35** | (415) 931-3500 - (415) 931-3599 | 75 |
| (415) 931-36** | (415) 931-3600 - (415) 931-3698 | 77 |
| (415) 931-37** | (415) 931-3701 - (415) 931-3797 | 75 |
| (415) 931-38** | (415) 931-3800 - (415) 931-3897 | 80 |
| (415) 931-39** | (415) 931-3903 - (415) 931-3998 | 75 |
US Phone Directory: (415) 931-3***
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