| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (925) 730-40** | (925) 730-4000 - (925) 730-4069 | 19 |
| (925) 730-43** | (925) 730-4300 - (925) 730-4399 | 17 |
| (925) 730-44** | (925) 730-4494 - (925) 730-4494 | 1 |
| (925) 730-45** | (925) 730-4511 - (925) 730-4511 | 1 |
| (925) 730-46** | (925) 730-4662 - (925) 730-4662 | 1 |
| (925) 730-49** | (925) 730-4900 - (925) 730-4998 | 19 |
US Phone Directory: (925) 730-4***
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