OSCEOLA — IN
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | 4 |
| INDIANA BELL TEL CO INC | 9325 | 4 |
| ONVOY, LLC - IN | 097D | 2 |
| AT&T ENTERPRISES, LLC | 516C | 1 |
| AT&T - LOCAL | 7421 | 1 |