| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 231-90** | (303) 231-9000 - (303) 231-9099 | 40 |
| (303) 231-91** | (303) 231-9101 - (303) 231-9199 | 36 |
| (303) 231-92** | (303) 231-9200 - (303) 231-9297 | 48 |
| (303) 231-93** | (303) 231-9300 - (303) 231-9399 | 46 |
| (303) 231-94** | (303) 231-9400 - (303) 231-9499 | 41 |
| (303) 231-95** | (303) 231-9500 - (303) 231-9599 | 39 |
| (303) 231-96** | (303) 231-9600 - (303) 231-9699 | 41 |
| (303) 231-97** | (303) 231-9700 - (303) 231-9799 | 36 |
| (303) 231-98** | (303) 231-9801 - (303) 231-9897 | 40 |
| (303) 231-99** | (303) 231-9905 - (303) 231-9999 | 43 |
US Phone Directory: (303) 231-9***
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