| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 807-50** | (303) 807-5000 - (303) 807-5096 | 34 |
| (303) 807-51** | (303) 807-5100 - (303) 807-5198 | 24 |
| (303) 807-52** | (303) 807-5200 - (303) 807-5296 | 28 |
| (303) 807-53** | (303) 807-5306 - (303) 807-5396 | 22 |
| (303) 807-54** | (303) 807-5403 - (303) 807-5496 | 31 |
| (303) 807-55** | (303) 807-5505 - (303) 807-5598 | 31 |
| (303) 807-56** | (303) 807-5601 - (303) 807-5699 | 19 |
| (303) 807-57** | (303) 807-5701 - (303) 807-5798 | 27 |
| (303) 807-58** | (303) 807-5800 - (303) 807-5897 | 19 |
| (303) 807-59** | (303) 807-5910 - (303) 807-5998 | 28 |
US Phone Directory: (303) 807-5***
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