GLENWOOD — IA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BTC, INC. - IA | 156C | 1 |
| UNITED STATES CELLULAR - IA | 6266 | 1 |
| WINDSTREAM COMMUNICATIONS OF THE MIDEWEST INC - NE | 7816 | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | 1 |
| QWEST CORPORATION | 9631 | 1 |