Prefixes with phone numbers reported to the Federal Trade Commission and Federal Communications Commission
| Prefix | Phone Numbers | Last Complaint |
|---|---|---|
| 510-250 | 31 | December 12, 2018 |
| 510-906 | 26 | December 12, 2018 |
| 510-703 | 46 | December 12, 2018 |
| 510-586 | 8 | December 12, 2018 |
| 510-629 | 21 | December 12, 2018 |
| 510-757 | 26 | December 12, 2018 |
| 510-897 | 28 | December 12, 2018 |
| 510-556 | 82 | December 12, 2018 |
| 510-599 | 54 | December 12, 2018 |
| 510-663 | 6 | December 12, 2018 |
| 510-856 | 13 | December 12, 2018 |
| 510-578 | 66 | December 12, 2018 |
| 510-706 | 35 | December 12, 2018 |
| 510-847 | 117 | December 12, 2018 |
| 510-633 | 18 | December 12, 2018 |
| 510-890 | 2 | December 12, 2018 |
| 510-561 | 68 | December 12, 2018 |
| 510-786 | 6 | December 12, 2018 |
| 510-329 | 39 | December 12, 2018 |
| 510-393 | 37 | December 12, 2018 |
| 510-244 | 16 | December 12, 2018 |
| 510-319 | 184 | December 12, 2018 |
| 510-224 | 26 | December 12, 2018 |
| 510-374 | 21 | December 12, 2018 |
| 510-417 | 23 | December 12, 2018 |
| 510-513 | 134 | December 12, 2018 |
| 510-386 | 36 | December 12, 2018 |
| 510-429 | 44 | December 12, 2018 |
| 510-291 | 11 | December 12, 2018 |
| 510-515 | 2 | December 12, 2018 |
| 510-462 | 45 | December 12, 2018 |
| 510-292 | 25 | December 12, 2018 |
| 510-239 | 10 | December 12, 2018 |
| 510-367 | 24 | December 12, 2018 |
| 510-421 | 19 | December 12, 2018 |
| 510-475 | 8 | December 12, 2018 |
| 510-422 | 34 | December 12, 2018 |
| 510-529 | 27 | December 12, 2018 |
| 510-508 | 87 | December 12, 2018 |
| 510-455 | 102 | December 12, 2018 |
| 510-210 | 116 | December 12, 2018 |
| 510-552 | 83 | December 12, 2018 |
| 510-564 | 29 | December 12, 2018 |
| 510-853 | 16 | December 12, 2018 |
| 510-255 | 17 | December 12, 2018 |
| 510-747 | 7 | December 12, 2018 |
| 510-269 | 38 | December 12, 2018 |
| 510-516 | 16 | December 12, 2018 |
| 510-676 | 140 | December 12, 2018 |
| 510-431 | 37 | December 12, 2018 |
| 510-325 | 45 | December 12, 2018 |
| 510-507 | 19 | December 12, 2018 |
| 510-316 | 51 | December 12, 2018 |
| 510-572 | 6 | December 12, 2018 |
| 510-274 | 19 | December 12, 2018 |
| 510-306 | 20 | December 12, 2018 |
| 510-830 | 17 | December 11, 2018 |
| 510-788 | 10 | December 11, 2018 |
| 510-896 | 6 | December 11, 2018 |
| 510-865 | 8 | December 11, 2018 |
| 510-683 | 11 | December 11, 2018 |
| 510-758 | 18 | December 11, 2018 |
| 510-727 | 10 | December 11, 2018 |
| 510-738 | 21 | December 11, 2018 |
| 510-834 | 7 | December 11, 2018 |
| 510-792 | 27 | December 11, 2018 |
| 510-868 | 28 | December 11, 2018 |
| 510-989 | 7 | December 11, 2018 |
| 510-571 | 46 | December 11, 2018 |
| 510-753 | 7 | December 11, 2018 |
| 510-754 | 33 | December 11, 2018 |
| 510-425 | 5 | December 11, 2018 |
| 510-532 | 9 | December 11, 2018 |
| 510-523 | 45 | December 11, 2018 |
| 510-321 | 11 | December 11, 2018 |
| 510-238 | 12 | December 11, 2018 |
| 510-334 | 33 | December 11, 2018 |
| 510-313 | 19 | December 11, 2018 |
| 510-282 | 94 | December 11, 2018 |
| 510-219 | 176 | December 11, 2018 |
| 510-423 | 16 | December 11, 2018 |
| 510-519 | 17 | December 11, 2018 |
| 510-691 | 32 | December 11, 2018 |
| 510-458 | 5 | December 11, 2018 |
| 510-256 | 114 | December 11, 2018 |
| 510-640 | 11 | December 11, 2018 |
| 510-662 | 23 | December 11, 2018 |
| 510-493 | 7 | December 11, 2018 |
| 510-978 | 19 | December 11, 2018 |
| 510-432 | 109 | December 11, 2018 |
| 510-731 | 20 | December 11, 2018 |
| 510-359 | 13 | December 11, 2018 |
| 510-864 | 13 | December 10, 2018 |
| 510-789 | 31 | December 10, 2018 |
| 510-694 | 21 | December 10, 2018 |
| 510-642 | 9 | December 10, 2018 |
| 510-679 | 16 | December 10, 2018 |
| 510-648 | 27 | December 10, 2018 |
| 510-553 | 3 | December 10, 2018 |
| 510-331 | 37 | December 10, 2018 |
| Type: General Purpose Code |
| Use: Geograpic |
| Location: CALIFORNIA |
| Country: UNITED STATES |
| Service Date: 1991-09-02 |
| Service: - |
Other area codes serving CALIFORNIA, UNITED STATES