GREENCASTL — IN
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER NORTH, INC.. - IN | 0772 | 3 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 3 |
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | 1 |
| COMCAST IP PHONE, LLC | 318J | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | 1 |