| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 837-80** | (303) 837-8000 - (303) 837-8091 | 43 |
| (303) 837-81** | (303) 837-8100 - (303) 837-8199 | 50 |
| (303) 837-82** | (303) 837-8200 - (303) 837-8299 | 52 |
| (303) 837-83** | (303) 837-8300 - (303) 837-8399 | 53 |
| (303) 837-84** | (303) 837-8400 - (303) 837-8499 | 51 |
| (303) 837-85** | (303) 837-8500 - (303) 837-8594 | 41 |
| (303) 837-86** | (303) 837-8600 - (303) 837-8698 | 46 |
| (303) 837-87** | (303) 837-8700 - (303) 837-8793 | 48 |
| (303) 837-88** | (303) 837-8800 - (303) 837-8895 | 46 |
| (303) 837-89** | (303) 837-8900 - (303) 837-8998 | 50 |
US Phone Directory: (303) 837-8***
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