| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (520) 603-40** | (520) 603-4003 - (520) 603-4092 | 24 |
| (520) 603-41** | (520) 603-4100 - (520) 603-4194 | 33 |
| (520) 603-42** | (520) 603-4202 - (520) 603-4297 | 31 |
| (520) 603-43** | (520) 603-4305 - (520) 603-4399 | 24 |
| (520) 603-44** | (520) 603-4401 - (520) 603-4498 | 43 |
| (520) 603-45** | (520) 603-4500 - (520) 603-4599 | 27 |
| (520) 603-46** | (520) 603-4600 - (520) 603-4699 | 30 |
| (520) 603-47** | (520) 603-4702 - (520) 603-4799 | 35 |
| (520) 603-48** | (520) 603-4800 - (520) 603-4892 | 31 |
| (520) 603-49** | (520) 603-4902 - (520) 603-4999 | 32 |
US Phone Directory: (520) 603-4***
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