| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (520) 578-30** | (520) 578-3000 - (520) 578-3098 | 78 |
| (520) 578-31** | (520) 578-3100 - (520) 578-3199 | 80 |
| (520) 578-32** | (520) 578-3200 - (520) 578-3299 | 82 |
| (520) 578-33** | (520) 578-3300 - (520) 578-3399 | 79 |
| (520) 578-34** | (520) 578-3400 - (520) 578-3499 | 80 |
| (520) 578-35** | (520) 578-3500 - (520) 578-3599 | 79 |
| (520) 578-36** | (520) 578-3600 - (520) 578-3699 | 86 |
| (520) 578-37** | (520) 578-3700 - (520) 578-3799 | 72 |
| (520) 578-38** | (520) 578-3801 - (520) 578-3899 | 81 |
| (520) 578-39** | (520) 578-3900 - (520) 578-3999 | 86 |
US Phone Directory: (520) 578-3***
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