| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 216-50** | (303) 216-5000 - (303) 216-5092 | 10 |
| (303) 216-51** | (303) 216-5101 - (303) 216-5181 | 3 |
| (303) 216-52** | (303) 216-5215 - (303) 216-5257 | 3 |
| (303) 216-53** | (303) 216-5335 - (303) 216-5335 | 1 |
| (303) 216-54** | (303) 216-5419 - (303) 216-5476 | 2 |
| (303) 216-55** | (303) 216-5512 - (303) 216-5587 | 13 |
| (303) 216-56** | (303) 216-5603 - (303) 216-5698 | 23 |
| (303) 216-57** | (303) 216-5700 - (303) 216-5798 | 16 |
| (303) 216-58** | (303) 216-5802 - (303) 216-5899 | 15 |
| (303) 216-59** | (303) 216-5900 - (303) 216-5996 | 12 |
US Phone Directory: (303) 216-5***
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