CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
54 prefixes in 312 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 312-209 | NORTHBROOK | 6333 | — | Yes |
| 312-237 | CHICGOZN01 | 6333 | — | Yes |
| 312-257 | CHICGOZN01 | 6333 | 2011-08-18 | Yes |
| 312-273 | CHICGOZN01 | 6333 | 2011-09-13 | Yes |
| 312-305 | NORTHBROOK | 6333 | — | Yes |
| 312-310 | NORTHBROOK | 6333 | — | Yes |
| 312-318 | LA GRANGE | 6333 | — | Yes |
| 312-339 | CHICGOZN01 | 6333 | — | — |
| 312-343 | CHICGOZN01 | 6333 | — | — |
| 312-350 | CHICGOZN01 | 6333 | — | — |
| 312-403 | LA GRANGE | 6333 | — | Yes |
| 312-405 | CHICGOZN01 | 6333 | — | — |
| 312-415 | CHICGOZN01 | 6333 | — | — |
| 312-438 | CHICGOZN01 | 6333 | 2017-06-02 | Yes |
| 312-448 | CHICGOZN01 | 6333 | 2011-08-02 | Yes |
| 312-485 | CHICGOZN01 | 6333 | — | — |
| 312-489 | CHICGOZN01 | 6333 | — | Yes |
| 312-497 | CHICGOZN01 | 6333 | — | — |
| 312-501 | LA GRANGE | 6333 | — | Yes |
| 312-502 | CHICGOZN01 | 6333 | — | — |
| 312-505 | CHICGOZN01 | 6333 | — | — |
| 312-515 | CHICGOZN01 | 6333 | — | — |
| 312-519 | CHICGOZN01 | 6333 | — | — |
| 312-520 | CHICGOZN01 | 6333 | — | — |
| 312-533 | CHICGOZN01 | 6333 | — | Yes |
| 312-550 | CHICGOZN01 | 6333 | — | — |
| 312-561 | CHICGOZN01 | 6333 | 2012-06-20 | Yes |
| 312-579 | CHICGOZN01 | 6333 | 2017-07-25 | Yes |
| 312-590 | CHICGOZN01 | 6333 | — | — |
| 312-597 | CHICGOZN01 | 6333 | 2016-10-04 | Yes |
| 312-599 | CHICGOZN01 | 6333 | 2016-11-21 | Yes |
| 312-610 | CHICGOZN01 | 6333 | 2012-08-06 | Yes |
| 312-636 | CHICGOZN01 | 6333 | — | — |
| 312-639 | CHICGOZN01 | 6333 | 2017-10-19 | Yes |
| 312-718 | CHICGOZN01 | 6333 | — | — |
| 312-720 | CHICGOZN01 | 6333 | — | — |
| 312-728 | CHICGOZN01 | 6333 | 2017-10-19 | Yes |
| 312-758 | CHICGOZN01 | 6333 | — | — |
| 312-771 | CHICGOZN01 | 6333 | — | — |
| 312-802 | CHICGOZN01 | 6333 | — | — |
| 312-805 | CHICGOZN01 | 6333 | — | — |
| 312-833 | CHICGOZN01 | 6333 | — | — |
| 312-835 | CHICGOZN01 | 6333 | — | — |
| 312-848 | CHICGOZN01 | 6333 | — | — |
| 312-859 | CHICGOZN01 | 6333 | — | — |
| 312-882 | CHICGOZN01 | 6333 | — | — |
| 312-898 | CHICGOZN01 | 6333 | — | — |
| 312-909 | CHICGOZN01 | 6333 | — | — |
| 312-914 | CHICGOZN01 | 6333 | — | — |
| 312-919 | CHICGOZN01 | 6333 | — | — |
| 312-937 | CHICGOZN01 | 6333 | 2014-09-25 | Yes |
| 312-965 | CHICGOZN01 | 6333 | — | — |
| 312-968 | LA GRANGE | 6333 | — | Yes |
| 312-969 | LA GRANGE | 6333 | — | 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.