HARLAN — IA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS | 1170 | 2 |
| FARMERS MUTUAL COOP. TEL. CO. | 1168 | 1 |
| ONVOY, LLC - IA | 221F | 1 |
| AUREON COMMUNICATIONS, LLC | 444G | 1 |
| FARMERS MUTUAL COOPERATIVE TELEPHONE COMPANY - IA | 5395 | 1 |