| 1 | SOH | Southern Ohio Aviation Sales Co. | Callsign: Southern Ohio, | USA | AVCODES |
| 2 | SOH | Southern Ohio Aviation Sales | | | ICAO1 |
| 3 | SOHA | SEVENTY ONE CONTRACT HAULERS LLC | | | SCAC4 |
| 4 | SOHB | SOHAL BROTHERS | | | SCAC4 |
| 5 | SOHE | STRAIGHT SHOT EXPRESS | | | SCAC4 |
| 6 | SOHF | SALAS MORENO, HERIBERTO | | | SCAC4 |
| 7 | SOHI | SOHI BROS ENTERPRISES LTD | | | SCAC4 |
| 8 | SOHN | SOHAN TRANSPORT | | | SCAC4 |
| 9 | SOHO | SOUTH AMERICAN EXPRESS LINE LIMITED | | | SCAC4 |
| 10 | SOHQ | SOHI TRUCKLINE INC | | | SCAC4 |
| 11 | SOHS | SERENO'S O'HARE SCHEDULED SERVICES, INC | | | SCAC1 |
