| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 355-60** | (303) 355-6000 - (303) 355-6099 | 76 |
| (303) 355-61** | (303) 355-6100 - (303) 355-6199 | 59 |
| (303) 355-62** | (303) 355-6200 - (303) 355-6299 | 74 |
| (303) 355-63** | (303) 355-6300 - (303) 355-6399 | 66 |
| (303) 355-64** | (303) 355-6401 - (303) 355-6498 | 70 |
| (303) 355-65** | (303) 355-6500 - (303) 355-6598 | 60 |
| (303) 355-66** | (303) 355-6600 - (303) 355-6696 | 73 |
| (303) 355-67** | (303) 355-6700 - (303) 355-6798 | 79 |
| (303) 355-68** | (303) 355-6801 - (303) 355-6898 | 60 |
| (303) 355-69** | (303) 355-6902 - (303) 355-6999 | 61 |
US Phone Directory: (303) 355-6***
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