COMMIO, LLC
8 prefixes in 872 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 872-275 | CHICGOZN01 | 939H | — | Yes |
| 872-280 | CHICGOZN04 | 939H | — | Yes |
| 872-324 | CHICGOZN09 | 939H | 2022-11-09 | Yes |
| 872-351 | CHICGOZN01 | 939H | 2024-01-05 | Yes |
| 872-353 | CHICGOZN06 | 939H | 2024-01-05 | Yes |
| 872-354 | CHICGOZN08 | 939H | 2024-01-05 | Yes |
| 872-365 | CHICGOZN02 | 939H | 2017-05-02 | Yes |
| 872-867 | CHICGOZN03 | 939H | 2022-04-13 | 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.