| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 979-30** | (303) 979-3000 - (303) 979-3097 | 79 |
| (303) 979-31** | (303) 979-3100 - (303) 979-3199 | 69 |
| (303) 979-32** | (303) 979-3200 - (303) 979-3299 | 78 |
| (303) 979-33** | (303) 979-3300 - (303) 979-3399 | 74 |
| (303) 979-34** | (303) 979-3400 - (303) 979-3499 | 79 |
| (303) 979-35** | (303) 979-3500 - (303) 979-3599 | 85 |
| (303) 979-36** | (303) 979-3601 - (303) 979-3699 | 72 |
| (303) 979-37** | (303) 979-3700 - (303) 979-3798 | 76 |
| (303) 979-38** | (303) 979-3800 - (303) 979-3899 | 79 |
| (303) 979-39** | (303) 979-3900 - (303) 979-3998 | 88 |
US Phone Directory: (303) 979-3***
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