| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (303) 931-00** | (303) 931-0008 - (303) 931-0097 | 21 |
| (303) 931-01** | (303) 931-0100 - (303) 931-0198 | 16 |
| (303) 931-02** | (303) 931-0213 - (303) 931-0298 | 13 |
| (303) 931-03** | (303) 931-0300 - (303) 931-0398 | 10 |
| (303) 931-04** | (303) 931-0409 - (303) 931-0497 | 10 |
| (303) 931-05** | (303) 931-0501 - (303) 931-0593 | 28 |
| (303) 931-06** | (303) 931-0600 - (303) 931-0698 | 24 |
| (303) 931-07** | (303) 931-0702 - (303) 931-0799 | 25 |
| (303) 931-08** | (303) 931-0812 - (303) 931-0896 | 28 |
| (303) 931-09** | (303) 931-0900 - (303) 931-0999 | 29 |
US Phone Directory: (303) 931-0***
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