| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (415) 543-40** | (415) 543-4001 - (415) 543-4099 | 31 |
| (415) 543-41** | (415) 543-4100 - (415) 543-4198 | 35 |
| (415) 543-42** | (415) 543-4200 - (415) 543-4298 | 29 |
| (415) 543-43** | (415) 543-4300 - (415) 543-4393 | 32 |
| (415) 543-44** | (415) 543-4400 - (415) 543-4499 | 37 |
| (415) 543-45** | (415) 543-4500 - (415) 543-4595 | 21 |
| (415) 543-46** | (415) 543-4600 - (415) 543-4699 | 25 |
| (415) 543-47** | (415) 543-4700 - (415) 543-4790 | 22 |
| (415) 543-48** | (415) 543-4800 - (415) 543-4898 | 26 |
| (415) 543-49** | (415) 543-4900 - (415) 543-4999 | 29 |
US Phone Directory: (415) 543-4***
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