| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 499-70** | (303) 499-7000 - (303) 499-7095 | 60 |
| (303) 499-71** | (303) 499-7101 - (303) 499-7199 | 56 |
| (303) 499-72** | (303) 499-7200 - (303) 499-7297 | 59 |
| (303) 499-73** | (303) 499-7300 - (303) 499-7399 | 66 |
| (303) 499-74** | (303) 499-7400 - (303) 499-7499 | 71 |
| (303) 499-75** | (303) 499-7500 - (303) 499-7599 | 55 |
| (303) 499-76** | (303) 499-7600 - (303) 499-7699 | 51 |
| (303) 499-77** | (303) 499-7700 - (303) 499-7799 | 69 |
| (303) 499-78** | (303) 499-7800 - (303) 499-7897 | 56 |
| (303) 499-79** | (303) 499-7901 - (303) 499-7999 | 63 |
US Phone Directory: (303) 499-7***
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