| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 671-50** | (303) 671-5000 - (303) 671-5097 | 59 |
| (303) 671-51** | (303) 671-5100 - (303) 671-5199 | 60 |
| (303) 671-52** | (303) 671-5200 - (303) 671-5297 | 55 |
| (303) 671-53** | (303) 671-5300 - (303) 671-5399 | 64 |
| (303) 671-54** | (303) 671-5403 - (303) 671-5498 | 54 |
| (303) 671-55** | (303) 671-5501 - (303) 671-5599 | 70 |
| (303) 671-56** | (303) 671-5600 - (303) 671-5699 | 53 |
| (303) 671-57** | (303) 671-5700 - (303) 671-5799 | 48 |
| (303) 671-58** | (303) 671-5801 - (303) 671-5899 | 57 |
| (303) 671-59** | (303) 671-5900 - (303) 671-5998 | 56 |
US Phone Directory: (303) 671-5***
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