| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 377-20** | (303) 377-2000 - (303) 377-2098 | 71 |
| (303) 377-21** | (303) 377-2100 - (303) 377-2199 | 74 |
| (303) 377-22** | (303) 377-2201 - (303) 377-2298 | 74 |
| (303) 377-23** | (303) 377-2300 - (303) 377-2397 | 69 |
| (303) 377-24** | (303) 377-2400 - (303) 377-2499 | 70 |
| (303) 377-25** | (303) 377-2501 - (303) 377-2598 | 76 |
| (303) 377-26** | (303) 377-2600 - (303) 377-2699 | 79 |
| (303) 377-27** | (303) 377-2700 - (303) 377-2799 | 73 |
| (303) 377-28** | (303) 377-2800 - (303) 377-2899 | 75 |
| (303) 377-29** | (303) 377-2900 - (303) 377-2999 | 75 |
US Phone Directory: (303) 377-2***
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