| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 993-50** | (303) 993-5000 - (303) 993-5099 | 95 |
| (303) 993-51** | (303) 993-5100 - (303) 993-5199 | 94 |
| (303) 993-52** | (303) 993-5201 - (303) 993-5299 | 95 |
| (303) 993-53** | (303) 993-5301 - (303) 993-5399 | 90 |
| (303) 993-54** | (303) 993-5400 - (303) 993-5499 | 92 |
| (303) 993-55** | (303) 993-5500 - (303) 993-5599 | 88 |
| (303) 993-56** | (303) 993-5600 - (303) 993-5699 | 88 |
| (303) 993-57** | (303) 993-5700 - (303) 993-5799 | 85 |
| (303) 993-58** | (303) 993-5800 - (303) 993-5899 | 87 |
| (303) 993-59** | (303) 993-5901 - (303) 993-5999 | 85 |
US Phone Directory: (303) 993-5***
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