NORTHWEST IOWA TELEPHONE, LLC
14 prefixes in 712 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 712-228 | SERGENTBLF | 1260 | 2002-09-04 | — |
| 712-237 | SERGENTBLF | 1260 | — | — |
| 712-247 | SERGENTBLF | 1260 | 2001-07-06 | — |
| 712-257 | SERGENTBLF | 1260 | — | — |
| 712-271 | SERGENTBLF | 1260 | — | — |
| 712-285 | SERGENTBLF | 1260 | 2003-02-21 | — |
| 712-421 | SLOAN | 1260 | 2001-02-20 | — |
| 712-428 | SLOAN | 1260 | — | — |
| 712-923 | SERGENTBLF | 1260 | 2001-11-09 | — |
| 712-924 | SERGENTBLF | 1260 | 2002-03-12 | — |
| 712-934 | SERGENTBLF | 1260 | 2002-05-21 | — |
| 712-942 | SERGENTBLF | 1260 | 2002-11-12 | — |
| 712-943 | SERGENTBLF | 1260 | — | — |
| 712-946 | SALIX | 1260 | — | — |
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.