| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 587-50** | (303) 587-5000 - (303) 587-5098 | 35 |
| (303) 587-51** | (303) 587-5100 - (303) 587-5192 | 32 |
| (303) 587-52** | (303) 587-5200 - (303) 587-5294 | 36 |
| (303) 587-53** | (303) 587-5300 - (303) 587-5399 | 27 |
| (303) 587-54** | (303) 587-5401 - (303) 587-5496 | 28 |
| (303) 587-55** | (303) 587-5502 - (303) 587-5598 | 37 |
| (303) 587-56** | (303) 587-5600 - (303) 587-5695 | 31 |
| (303) 587-57** | (303) 587-5700 - (303) 587-5799 | 33 |
| (303) 587-58** | (303) 587-5800 - (303) 587-5898 | 36 |
| (303) 587-59** | (303) 587-5903 - (303) 587-5998 | 37 |
US Phone Directory: (303) 587-5***
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