All assignees
609 prefixes in 224 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 224-966 | PISTAKHLDS | 965H | 2020-08-06 | Yes |
| 224-970 | BARTLETT | 984E | 2015-02-13 | Yes |
| 224-976 | — | — | ||
| 224-977 | NORTHBROOK | 965H | 2019-10-10 | Yes |
| 224-985 | PARK RIDGE | 318J | 2015-08-28 | Yes |
| 224-990 | PLATO CTR | 829J | 2006-06-19 | Yes |
| 224-993 | WAUCONDA | 6115 | 2005-03-11 | Yes |
| 224-998 | SKOKIE | 7136 | 2015-12-09 | Yes |
| 224-999 | EVANSTON | 6115 | 2010-09-22 | 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.