| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 431-90** | (303) 431-9000 - (303) 431-9096 | 61 |
| (303) 431-91** | (303) 431-9100 - (303) 431-9199 | 61 |
| (303) 431-92** | (303) 431-9200 - (303) 431-9299 | 68 |
| (303) 431-93** | (303) 431-9300 - (303) 431-9399 | 59 |
| (303) 431-94** | (303) 431-9400 - (303) 431-9499 | 63 |
| (303) 431-95** | (303) 431-9500 - (303) 431-9599 | 62 |
| (303) 431-96** | (303) 431-9600 - (303) 431-9699 | 66 |
| (303) 431-97** | (303) 431-9700 - (303) 431-9798 | 56 |
| (303) 431-98** | (303) 431-9800 - (303) 431-9899 | 49 |
| (303) 431-99** | (303) 431-9900 - (303) 431-9999 | 50 |
US Phone Directory: (303) 431-9***
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