| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (510) 774-50** | (510) 774-5017 - (510) 774-5094 | 15 |
| (510) 774-51** | (510) 774-5102 - (510) 774-5198 | 20 |
| (510) 774-52** | (510) 774-5209 - (510) 774-5284 | 20 |
| (510) 774-53** | (510) 774-5317 - (510) 774-5388 | 15 |
| (510) 774-54** | (510) 774-5409 - (510) 774-5495 | 17 |
| (510) 774-55** | (510) 774-5514 - (510) 774-5588 | 17 |
| (510) 774-56** | (510) 774-5601 - (510) 774-5696 | 17 |
| (510) 774-57** | (510) 774-5706 - (510) 774-5799 | 19 |
| (510) 774-58** | (510) 774-5801 - (510) 774-5897 | 17 |
| (510) 774-59** | (510) 774-5904 - (510) 774-5992 | 25 |
US Phone Directory: (510) 774-5***
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