| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (520) 603-00** | (520) 603-0000 - (520) 603-0099 | 24 |
| (520) 603-01** | (520) 603-0104 - (520) 603-0199 | 39 |
| (520) 603-02** | (520) 603-0205 - (520) 603-0297 | 31 |
| (520) 603-03** | (520) 603-0300 - (520) 603-0398 | 50 |
| (520) 603-04** | (520) 603-0402 - (520) 603-0499 | 33 |
| (520) 603-05** | (520) 603-0510 - (520) 603-0596 | 31 |
| (520) 603-06** | (520) 603-0609 - (520) 603-0698 | 22 |
| (520) 603-07** | (520) 603-0702 - (520) 603-0797 | 24 |
| (520) 603-08** | (520) 603-0800 - (520) 603-0899 | 30 |
| (520) 603-09** | (520) 603-0901 - (520) 603-0997 | 22 |
US Phone Directory: (520) 603-0***
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