| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 232-50** | (303) 232-5000 - (303) 232-5099 | 41 |
| (303) 232-51** | (303) 232-5100 - (303) 232-5198 | 52 |
| (303) 232-52** | (303) 232-5201 - (303) 232-5297 | 53 |
| (303) 232-53** | (303) 232-5303 - (303) 232-5399 | 53 |
| (303) 232-54** | (303) 232-5400 - (303) 232-5498 | 39 |
| (303) 232-55** | (303) 232-5500 - (303) 232-5597 | 45 |
| (303) 232-56** | (303) 232-5600 - (303) 232-5696 | 46 |
| (303) 232-57** | (303) 232-5700 - (303) 232-5799 | 49 |
| (303) 232-58** | (303) 232-5800 - (303) 232-5898 | 45 |
| (303) 232-59** | (303) 232-5900 - (303) 232-5999 | 41 |
US Phone Directory: (303) 232-5***
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