Prefixes with phone numbers reported to the Federal Trade Commission and Federal Communications Commission
| Prefix | Phone Numbers | Last Complaint |
|---|---|---|
| 303-912 | 185 | February 7, 2019 |
| 303-902 | 87 | February 7, 2019 |
| 303-945 | 53 | February 7, 2019 |
| 303-956 | 162 | February 7, 2019 |
| 303-988 | 105 | February 7, 2019 |
| 303-935 | 22 | February 7, 2019 |
| 303-967 | 6 | February 7, 2019 |
| 303-948 | 35 | February 7, 2019 |
| 303-906 | 78 | February 7, 2019 |
| 303-908 | 140 | February 7, 2019 |
| 303-972 | 33 | February 7, 2019 |
| 303-973 | 23 | February 7, 2019 |
| 303-984 | 18 | February 7, 2019 |
| 303-931 | 76 | February 7, 2019 |
| 303-868 | 124 | February 7, 2019 |
| 303-751 | 31 | February 7, 2019 |
| 303-785 | 9 | February 7, 2019 |
| 303-764 | 5 | February 7, 2019 |
| 303-807 | 77 | February 7, 2019 |
| 303-839 | 7 | February 7, 2019 |
| 303-700 | 5 | February 7, 2019 |
| 303-809 | 121 | February 7, 2019 |
| 303-746 | 255 | February 7, 2019 |
| 303-704 | 79 | February 7, 2019 |
| 303-844 | 12 | February 7, 2019 |
| 303-781 | 21 | February 7, 2019 |
| 303-856 | 52 | February 7, 2019 |
| 303-835 | 29 | February 7, 2019 |
| 303-515 | 18 | February 7, 2019 |
| 303-430 | 20 | February 7, 2019 |
| 303-622 | 14 | February 7, 2019 |
| 303-654 | 13 | February 7, 2019 |
| 303-377 | 25 | February 7, 2019 |
| 303-421 | 36 | February 7, 2019 |
| 303-549 | 76 | February 7, 2019 |
| 303-592 | 12 | February 7, 2019 |
| 303-346 | 34 | February 7, 2019 |
| 303-378 | 137 | February 7, 2019 |
| 303-410 | 25 | February 7, 2019 |
| 303-507 | 138 | February 7, 2019 |
| 303-667 | 94 | February 7, 2019 |
| 303-465 | 42 | February 7, 2019 |
| 303-604 | 31 | February 7, 2019 |
| 303-668 | 62 | February 7, 2019 |
| 303-487 | 14 | February 7, 2019 |
| 303-316 | 22 | February 7, 2019 |
| 303-520 | 91 | February 7, 2019 |
| 303-627 | 12 | February 7, 2019 |
| 303-252 | 26 | February 7, 2019 |
| 303-413 | 6 | February 7, 2019 |
| 303-500 | 62 | February 7, 2019 |
| 303-660 | 45 | February 7, 2019 |
| 303-671 | 12 | February 7, 2019 |
| 303-522 | 129 | February 7, 2019 |
| 303-650 | 18 | February 7, 2019 |
| 303-682 | 24 | February 7, 2019 |
| 303-501 | 56 | February 7, 2019 |
| 303-587 | 54 | February 7, 2019 |
| 303-619 | 85 | February 7, 2019 |
| 303-683 | 31 | February 7, 2019 |
| 303-309 | 41 | February 7, 2019 |
| 303-470 | 38 | February 7, 2019 |
| 303-598 | 48 | February 7, 2019 |
| 303-234 | 11 | February 7, 2019 |
| 303-652 | 36 | February 7, 2019 |
| 303-503 | 79 | February 7, 2019 |
| 303-256 | 23 | February 7, 2019 |
| 303-546 | 6 | February 7, 2019 |
| 303-214 | 61 | February 7, 2019 |
| 303-664 | 18 | February 7, 2019 |
| 303-900 | 34 | February 7, 2019 |
| 303-601 | 130 | February 7, 2019 |
| 303-248 | 43 | February 7, 2019 |
| 303-570 | 127 | February 7, 2019 |
| 303-977 | 5 | February 7, 2019 |
| 303-797 | 76 | February 7, 2019 |
| 303-829 | 149 | February 7, 2019 |
| 303-690 | 53 | February 7, 2019 |
| 303-242 | 51 | February 7, 2019 |
| 303-917 | 90 | February 7, 2019 |
| 303-747 | 75 | February 7, 2019 |
| 303-875 | 254 | February 7, 2019 |
| 303-351 | 66 | February 7, 2019 |
| 303-502 | 115 | February 7, 2019 |
| 303-566 | 15 | February 7, 2019 |
| 303-823 | 45 | February 7, 2019 |
| 303-834 | 54 | February 7, 2019 |
| 303-997 | 52 | February 6, 2019 |
| 303-944 | 31 | February 6, 2019 |
| 303-923 | 14 | February 6, 2019 |
| 303-913 | 101 | February 6, 2019 |
| 303-947 | 195 | February 6, 2019 |
| 303-905 | 119 | February 6, 2019 |
| 303-928 | 26 | February 6, 2019 |
| 303-971 | 8 | February 6, 2019 |
| 303-929 | 119 | February 6, 2019 |
| 303-718 | 56 | February 6, 2019 |
| 303-729 | 15 | February 6, 2019 |
| 303-793 | 8 | February 6, 2019 |
| 303-740 | 6 | February 6, 2019 |
| Type: General Purpose Code |
| Use: Geograpic |
| Location: COLORADO |
| Country: UNITED STATES |
| Service Date: 1947-01-01 |
| Service: - |
Other area codes serving COLORADO, UNITED STATES