| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 857-70** | (303) 857-7071 - (303) 857-7077 | 2 |
| (303) 857-71** | (303) 857-7100 - (303) 857-7190 | 10 |
| (303) 857-72** | (303) 857-7200 - (303) 857-7287 | 4 |
| (303) 857-73** | (303) 857-7300 - (303) 857-7390 | 8 |
| (303) 857-74** | (303) 857-7400 - (303) 857-7497 | 6 |
| (303) 857-75** | (303) 857-7500 - (303) 857-7577 | 10 |
| (303) 857-76** | (303) 857-7633 - (303) 857-7633 | 1 |
| (303) 857-77** | (303) 857-7711 - (303) 857-7711 | 1 |
| (303) 857-78** | (303) 857-7800 - (303) 857-7899 | 76 |
| (303) 857-79** | (303) 857-7901 - (303) 857-7998 | 82 |
US Phone Directory: (303) 857-7***
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