| 1 | CID | Asia Continental Airlines | Callsign: Acid, | KZ | AVCODES |
| 2 | CID | Asia Continental Airlines | | | ICAO1 |
| 3 | CIDB | CRUCES INTERNACIONALES DE LIQUIDOS | | | SCAC4 |
| 4 | CIDC | COMMERCIAL INDUSTRIAL COURIER SERVI | | | SCAC3 |
| 5 | CIDC | CONSOLIDADORA INTERNACIONAL DE CARG | | | SCAC4 |
| 6 | CIDF | CRUCES INTERNACIONALES DE FRONTERA | | | SCAC4 |
| 7 | CIDH | CRITICALSHIP INC | | | SCAC4 |
| 8 | CIDI | CRAIG-IMPERIAL DISTRIBUTION CO | | | SCAC3 |
| 9 | CIDK | CENTRAL ILLINOIS COURIER | | | SCAC4 |
| 10 | CIDL | COIL-LINE LIMITED | | | SCAC4 |
| 11 | CIDM | CRIDER MOVING & STORAGE | | | SCAC4 |
| 12 | CIDN | CITI CORP DINERS CLUB INC | | | SCAC3 |
| 13 | CIDO | CITY DELIVERY SERVICE | | | SCAC3 |
| 14 | CIDO | CASITA DEL SOL | | | SCAC4 |
| 15 | CIDP | CINDARN PLASTICS | | | SCAC3 |
| 16 | CIDQ | CITY DRAY & TRANSFER | | | SCAC3 |
| 17 | CIDR | CONENTAL INDUSTRIES INC | | | SCAC3 |
| 18 | CIDS | COLLINS INDUSTRIES INC | | | SCAC4 |
| 19 | CIDT | C I D S TRANSPORTATION INC | | | SCAC3 |
| 20 | CIDU | I.C.T.C. NV | | B | BIC |
| 21 | CIDV | CITY DELIVERY SERVICE | | | SCAC3 |
| 22 | CIDX | CITY OF DAYTON | | | PWRC |
