| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 255-40** | (303) 255-4000 - (303) 255-4099 | 79 |
| (303) 255-41** | (303) 255-4100 - (303) 255-4181 | 5 |
| (303) 255-42** | (303) 255-4214 - (303) 255-4288 | 2 |
| (303) 255-43** | (303) 255-4304 - (303) 255-4395 | 14 |
| (303) 255-44** | (303) 255-4400 - (303) 255-4460 | 2 |
| (303) 255-45** | (303) 255-4500 - (303) 255-4599 | 90 |
| (303) 255-46** | (303) 255-4601 - (303) 255-4699 | 80 |
| (303) 255-47** | (303) 255-4700 - (303) 255-4799 | 78 |
| (303) 255-48** | (303) 255-4800 - (303) 255-4899 | 80 |
| (303) 255-49** | (303) 255-4902 - (303) 255-4999 | 78 |
US Phone Directory: (303) 255-4***
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