California
Area code 840 reported phone numbers
Area code 840 is assigned to California, with 129 prefixes in use held by 14 carriers and rate centers such as Pomona, S Berndino, Arrowhead, Fontana, Chino, Ontario. Consumers have filed 315 complaints about 183 numbers in this area code, and 4 of those numbers have enough reports to get their own page.
183Reported numbers
315Complaints
129Complaints, last 30 days
Oct 21, 2026Last complaint
Most reported 840 numbers in the last 30 days
| Phone number | Last 30 days | Most reported topic |
|---|---|---|
| (840) 666-6082 | 8 | Impostor calls |
| (840) 263-7620 | 3 | Debt reduction |
| (840) 201-4173 | 3 | Other |
| (840) 210-9065 | 2 | Impostor calls |
| (840) 221-8731 | 2 | Debt reduction |
| (840) 221-9796 | 2 | Impostor calls |
| (840) 237-3511 | 2 | Other |
| (840) 356-7638 | 2 | Not specified |
| (840) 201-4223 | 1 | Other |
| (840) 201-4224 | 1 | Other |
| (840) 214-3892 | 1 | Other |
| (840) 221-9158 | 1 | Debt reduction |
| (840) 221-9503 | 1 | Other |
| (840) 236-9886 | 1 | Debt reduction |
| (840) 275-7184 | 1 | Not specified |
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 840 numbers with repeated complaints
| Phone number | Complaints | Topic | Last reported |
|---|---|---|---|
| (840) 263-7620 | 115 | Debt reduction | Oct 12, 2026 |
| (840) 666-6082 | 8 | Impostor calls | Sep 28, 2026 |
| (840) 201-4173 | 3 | Other | Sep 23, 2026 |
| (840) 268-4607 | 3 | Impostor calls | Sep 16, 2026 |