| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 903-30** | (303) 903-3003 - (303) 903-3098 | 33 |
| (303) 903-31** | (303) 903-3100 - (303) 903-3195 | 28 |
| (303) 903-32** | (303) 903-3203 - (303) 903-3297 | 24 |
| (303) 903-33** | (303) 903-3301 - (303) 903-3399 | 29 |
| (303) 903-34** | (303) 903-3400 - (303) 903-3496 | 30 |
| (303) 903-35** | (303) 903-3502 - (303) 903-3599 | 33 |
| (303) 903-36** | (303) 903-3602 - (303) 903-3699 | 39 |
| (303) 903-37** | (303) 903-3700 - (303) 903-3799 | 31 |
| (303) 903-38** | (303) 903-3800 - (303) 903-3894 | 29 |
| (303) 903-39** | (303) 903-3901 - (303) 903-3999 | 34 |
US Phone Directory: (303) 903-3***
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