GRUNDY CTR — IA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS | 1170 | 2 |
| HEART OF IOWA VENTURES, L.L.C. - IA | 346F | 1 |
| AUREON COMMUNICATIONS, LLC | 444G | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | 1 |