CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
12 prefixes in 840 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 840-218 | CHINO | 6006 | 2022-10-10 | Yes |
| 840-227 | S BERNDINO | 6006 | 2023-04-13 | Yes |
| 840-228 | COLTON | 6006 | 2023-04-17 | Yes |
| 840-229 | CLAREMONT | 6006 | 2023-04-18 | Yes |
| 840-258 | HIGHLAND | 6006 | 2024-04-15 | Yes |
| 840-266 | S BERNDINO | 6006 | 2024-10-09 | Yes |
| 840-271 | FONTANA | 6006 | 2025-01-14 | Yes |
| 840-275 | POMONA | 6006 | 2025-03-18 | Yes |
| 840-276 | UPLAND | 6006 | 2025-03-27 | Yes |
| 840-277 | CLAREMONT | 6006 | 2025-03-28 | Yes |
| 840-279 | ONTARIO | 6006 | 2025-07-29 | Yes |
| 840-998 | HIGHLAND | 6006 | 2026-01-16 | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.