| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (510) 450-50** | (510) 450-5000 - (510) 450-5063 | 4 |
| (510) 450-53** | (510) 450-5303 - (510) 450-5303 | 1 |
| (510) 450-54** | (510) 450-5421 - (510) 450-5461 | 3 |
| (510) 450-56** | (510) 450-5613 - (510) 450-5696 | 9 |
| (510) 450-57** | (510) 450-5744 - (510) 450-5744 | 1 |
| (510) 450-58** | (510) 450-5806 - (510) 450-5892 | 14 |
US Phone Directory: (510) 450-5***
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