MARBLEROCK — IA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS | 1170 | 1 |
| OMNITEL COMMUNICATIONS, INC. - IA | 3620 | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS | 1170 | 1 |
| OMNITEL COMMUNICATIONS, INC. - IA | 3620 | 1 |