| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 646-50** | (303) 646-5000 - (303) 646-5098 | 63 |
| (303) 646-51** | (303) 646-5100 - (303) 646-5197 | 48 |
| (303) 646-52** | (303) 646-5200 - (303) 646-5299 | 55 |
| (303) 646-53** | (303) 646-5300 - (303) 646-5397 | 53 |
| (303) 646-54** | (303) 646-5400 - (303) 646-5499 | 54 |
| (303) 646-55** | (303) 646-5500 - (303) 646-5599 | 51 |
| (303) 646-56** | (303) 646-5600 - (303) 646-5694 | 54 |
| (303) 646-57** | (303) 646-5700 - (303) 646-5799 | 42 |
| (303) 646-58** | (303) 646-5801 - (303) 646-5897 | 51 |
| (303) 646-59** | (303) 646-5900 - (303) 646-5999 | 45 |
US Phone Directory: (303) 646-5***
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