| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 674-30** | (303) 674-3000 - (303) 674-3099 | 80 |
| (303) 674-31** | (303) 674-3100 - (303) 674-3199 | 78 |
| (303) 674-32** | (303) 674-3200 - (303) 674-3299 | 91 |
| (303) 674-33** | (303) 674-3301 - (303) 674-3399 | 68 |
| (303) 674-34** | (303) 674-3400 - (303) 674-3498 | 82 |
| (303) 674-35** | (303) 674-3500 - (303) 674-3598 | 76 |
| (303) 674-36** | (303) 674-3600 - (303) 674-3698 | 85 |
| (303) 674-37** | (303) 674-3700 - (303) 674-3798 | 83 |
| (303) 674-38** | (303) 674-3800 - (303) 674-3898 | 72 |
| (303) 674-39** | (303) 674-3900 - (303) 674-3999 | 69 |
US Phone Directory: (303) 674-3***
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