| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 336-50** | (303) 336-5002 - (303) 336-5095 | 43 |
| (303) 336-51** | (303) 336-5100 - (303) 336-5198 | 47 |
| (303) 336-52** | (303) 336-5204 - (303) 336-5298 | 36 |
| (303) 336-53** | (303) 336-5300 - (303) 336-5399 | 43 |
| (303) 336-54** | (303) 336-5401 - (303) 336-5499 | 38 |
| (303) 336-55** | (303) 336-5500 - (303) 336-5597 | 41 |
| (303) 336-56** | (303) 336-5603 - (303) 336-5698 | 47 |
| (303) 336-57** | (303) 336-5702 - (303) 336-5799 | 46 |
| (303) 336-58** | (303) 336-5802 - (303) 336-5893 | 44 |
| (303) 336-59** | (303) 336-5900 - (303) 336-5995 | 30 |
US Phone Directory: (303) 336-5***
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