| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (408) 257-00** | (408) 257-0000 - (408) 257-0000 | 1 |
| (408) 257-01** | (408) 257-0101 - (408) 257-0198 | 46 |
| (408) 257-02** | (408) 257-0202 - (408) 257-0299 | 50 |
| (408) 257-03** | (408) 257-0300 - (408) 257-0397 | 53 |
| (408) 257-04** | (408) 257-0402 - (408) 257-0499 | 43 |
| (408) 257-05** | (408) 257-0501 - (408) 257-0599 | 50 |
| (408) 257-06** | (408) 257-0600 - (408) 257-0699 | 44 |
| (408) 257-07** | (408) 257-0715 - (408) 257-0799 | 41 |
| (408) 257-08** | (408) 257-0800 - (408) 257-0899 | 50 |
| (408) 257-09** | (408) 257-0900 - (408) 257-0994 | 45 |
US Phone Directory: (408) 257-0***
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