| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (510) 357-50** | (510) 357-5002 - (510) 357-5097 | 67 |
| (510) 357-51** | (510) 357-5100 - (510) 357-5199 | 70 |
| (510) 357-52** | (510) 357-5200 - (510) 357-5299 | 67 |
| (510) 357-53** | (510) 357-5301 - (510) 357-5399 | 65 |
| (510) 357-54** | (510) 357-5400 - (510) 357-5499 | 65 |
| (510) 357-55** | (510) 357-5502 - (510) 357-5598 | 63 |
| (510) 357-56** | (510) 357-5600 - (510) 357-5699 | 67 |
| (510) 357-57** | (510) 357-5700 - (510) 357-5799 | 67 |
| (510) 357-58** | (510) 357-5800 - (510) 357-5899 | 63 |
| (510) 357-59** | (510) 357-5900 - (510) 357-5998 | 66 |
US Phone Directory: (510) 357-5***
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