| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 434-40** | (303) 434-4001 - (303) 434-4098 | 30 |
| (303) 434-41** | (303) 434-4100 - (303) 434-4199 | 20 |
| (303) 434-42** | (303) 434-4202 - (303) 434-4291 | 28 |
| (303) 434-43** | (303) 434-4302 - (303) 434-4397 | 33 |
| (303) 434-44** | (303) 434-4416 - (303) 434-4491 | 17 |
| (303) 434-45** | (303) 434-4501 - (303) 434-4599 | 25 |
| (303) 434-46** | (303) 434-4601 - (303) 434-4699 | 19 |
| (303) 434-47** | (303) 434-4720 - (303) 434-4798 | 22 |
| (303) 434-48** | (303) 434-4800 - (303) 434-4896 | 26 |
| (303) 434-49** | (303) 434-4903 - (303) 434-4999 | 16 |
US Phone Directory: (303) 434-4***
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