| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 779-10** | (303) 779-1000 - (303) 779-1099 | 53 |
| (303) 779-11** | (303) 779-1100 - (303) 779-1199 | 71 |
| (303) 779-12** | (303) 779-1200 - (303) 779-1297 | 47 |
| (303) 779-13** | (303) 779-1300 - (303) 779-1396 | 55 |
| (303) 779-14** | (303) 779-1400 - (303) 779-1499 | 50 |
| (303) 779-15** | (303) 779-1503 - (303) 779-1597 | 46 |
| (303) 779-16** | (303) 779-1600 - (303) 779-1699 | 45 |
| (303) 779-17** | (303) 779-1708 - (303) 779-1799 | 42 |
| (303) 779-18** | (303) 779-1800 - (303) 779-1899 | 46 |
| (303) 779-19** | (303) 779-1900 - (303) 779-1999 | 48 |
US Phone Directory: (303) 779-1***
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