HIGHLAND — IN
Data last updated: August 31, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| INDIANA BELL TEL CO INC | 9325 | 8 |
| ONVOY, LLC - IN | 097D | 3 |
| PEERLESS NETWORK OF INDIANA, LLC - IN | 279F | 1 |
| COMCAST IP PHONE, LLC | 318J | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | 1 |