| 1 | CHO | Chrome Air Service | Callsign: Chrome Air, | WAN | AVCODES |
| 2 | CHO | Ciga Hotels Aviation S.p.A. | | I | AVCODES |
| 3 | CHO | Chrome Air Services | | | ICAO1 |
| 4 | CHO | CHEROKEE TOURS | | | SCAC4 |
| 5 | CHO | Choshi Railway | | J | TRAFFIC |
| 6 | CHOB | CHO-BO (1990) INC | | | SCAC3 |
| 7 | CHOC | CHOCTAW TRANSPORT, INC | | | SCAC3 |
| 8 | CHOC | CHOCTAW TRANSPORT INC | | | SCAC4 |
| 9 | CHOC | The Chocolate Express Bus Company | | GB | TRAFFIC |
| 10 | CHOD | CHOTIN TRANSPORTATION INC | | | SCAC3 |
| 11 | CHOD | CHIPOOSE TRANSPORT LTD | | | SCAC4 |
| 12 | CHOD | MZK Chodziedż | | PL | TRAFFIC |
| 13 | CHOF | CHEROKEE FREIGHT LINES, Scan-Vino, INC | | | SCAC3 |
| 14 | CHOF | CHEROKEE FREIGHT LINES STOCKTON LLC | | | SCAC4 |
| 15 | CHOH | CAHOON TRANSFER & STORAGE INC | | | SCAC3 |
| 16 | CHOI | CHARRO TRANSPORTATION | | | SCAC3 |
| 17 | CHOK | CHEROKEE TRANSPORT INC | | | SCAC3 |
| 18 | CHOL | CHRIST TRUCK SERVICE INC | | | SCAC3 |
| 19 | CHOL | CHURCHILLS OIL & GAS INC | | | SCAC4 |
| 20 | CHOM | COHENOUR TRUCKING | | | SCAC3 |
| 21 | CHON | CHOZEN TRUCKING CO | | | SCAC3 |
| 22 | CHON | CHRISTENSEN CONCRETE LLC | | | SCAC4 |
| 23 | CHOO | CHOQUETTE, OMER TRUCKING INC | | | SCAC3 |
| 24 | CHOO | CHARLTON OIL CO INC | | | SCAC4 |
| 25 | CHOP | CHRISTOPHER, JOHN M | | | SCAC3 |
| 26 | CHOP | CHOLITA CORP | | | SCAC4 |
| 27 | CHOQ | C AND H COURIERS | | | SCAC3 |
| 28 | CHOQ | C & H LOGISTICS INC | | | SCAC4 |
| 29 | CHOR | CHALLENGER MOTOR FREIGHT INC (INTER | | | SCAC4 |
| 30 | CHOS | CHARTER OAK SHIPPERS COOP | | | SCAC3 |
| 31 | CHOS | CHOSUN SHIPPING CO LTD | | | SCAC4 |
| 32 | CHOT | CHOLTIN TRANSPORTATION INC | | | SCAC3 |
| 33 | CHOU | CHIMOSA CHIMICA ORGANICA S.P.A. | | | SCAC3 |
| 34 | CHOU | CHIMOSA CHIMICA ORGANICA S.P.A. | | | SCAC4 |
| 35 | CHOV | COUILLARDS HEATING OILS INC | | | SCAC3 |
| 36 | CHOW | CHOCTAW TRANSPORT INC | | | SCAC3 |
| 37 | CHOX | COLORADO HISTORICAL SOCIETY | | | PWRC |
