Colorado
Area code 303 reported phone numbers
Area code 303 is assigned to Colorado, with 784 prefixes in use held by 27 carriers and rate centers such as Denver, Longmont, Fortlupton, Deckers, Keenesburg, Deer Trail. Consumers have filed 3,716 complaints about 3,309 numbers in this area code, and 14 of those numbers have enough reports to get their own page.
3,309Reported numbers
3,716Complaints
976Complaints, last 30 days
Oct 21, 2026Last complaint
Most reported 303 numbers in the last 30 days
| Phone number | Last 30 days | Most reported topic |
|---|---|---|
| (303) 622-1668 | 4 | Dropped call or no message |
| (303) 226-4906 | 3 | Dropped call or no message |
| (303) 351-4459 | 3 | Impostor calls |
| (303) 443-4672 | 3 | Other |
| (303) 289-7869 | 2 | Not specified |
| (303) 219-5957 | 2 | Other |
| (303) 278-9972 | 2 | Other |
| (303) 401-1897 | 2 | Other |
| (303) 497-0601 | 2 | Home security & alarms |
| (303) 634-2136 | 2 | Medical & prescriptions |
| (303) 647-3845 | 2 | Other |
| (303) 772-7962 | 2 | Medical & prescriptions |
| (303) 895-2151 | 2 | Other |
| (303) 943-0885 | 2 | Warranties & protection plans |
| (303) 990-8691 | 2 | Other |
Scammers often fake caller IDs with local area codes (“neighbor spoofing”) so their calls look familiar. A local number on this list may be spoofed rather than owned by the caller.
All 303 numbers with repeated complaints
| Phone number | Complaints | Topic | Last reported |
|---|---|---|---|
| (303) 443-4672 | 3 | Other | Oct 19, 2026 |
| (303) 622-1668 | 6 | Dropped call or no message | Oct 8, 2026 |
| (303) 500-8598 | 3 | Other | Oct 7, 2026 |
| (303) 276-6828 | 3 | Not specified | Oct 7, 2026 |
| (303) 226-4906 | 3 | Dropped call or no message | Oct 6, 2026 |
| (303) 351-4459 | 3 | Impostor calls | Sep 24, 2026 |
| (303) 289-7869 | 3 | Not specified | Sep 22, 2026 |
| (303) 586-7980 | 4 | Dropped call or no message | Sep 18, 2026 |
| (303) 966-9591 | 4 | Other | Sep 15, 2026 |
| (303) 482-9949 | 3 | Impostor calls | Sep 14, 2026 |
| (303) 459-2398 | 3 | Not specified | Sep 4, 2026 |
| (303) 494-0256 | 3 | Warranties & protection plans | Sep 4, 2026 |
| (303) 970-7613 | 5 | Not specified | Aug 23, 2025 |
| (303) 348-9491 | 3 | Not specified | Apr 10, 2025 |