| 1 | CFI | Flight Inspection Center of the General Administration of Civil Aviation of China | Callsign: China Jet, | K | AVCODES |
| 2 | CFI | Flight Inspection Center of the General Administra | | | ICAO1 |
| 3 | CFI | COLORADO FUEL & IRON CO. | | | PWRC |
| 4 | CFI | S.C. Calea Ferata Ingusta SRL | | RO | TRAFFIC |
| 5 | CFI | CFI - COMPAGNIA FERROVIARIA ITALIANA SrL | | IT | VKM |
| 6 | CFIB | COASTAL FIBERS INC | | | SCAC3 |
| 7 | CFIB | CRITICAL FREIGHT INC | | | SCAC4 |
| 8 | CFIC | CERTIFIED CONTRACT CARRIERS | | | SCAC3 |
| 9 | CFIC | CORMIERS FIVE ISLAND CLAMS LIMITED | | | SCAC4 |
| 10 | CFID | CERTIFIED TRUCKING INDUSTRIES INC | | | SCAC3 |
| 11 | CFID | CAROLINA FOODS INC | | | SCAC4 |
| 12 | CFIE | CALIFORNIA INLAND EMPIRE TRUCKING I | | | SCAC3 |
| 13 | CFIF | CASTO FARMS INC | | | SCAC4 |
| 14 | CFIG | CONTINENTAL FREIGHT SERVICE INC | | | SCAC3 |
| 15 | CFIG | CHICAGO FREIGHT INC | | | SCAC4 |
| 16 | CFIH | CONTRACTOR FREIGHT SERVICE | | | SCAC3 |
| 17 | CFIH | COLE FREIGHT INC | | | SCAC4 |
| 18 | CFII | C F I SYSTEMS INC | | | SCAC3 |
| 19 | CFII | CFT-IOS INC | | | SCAC4 |
| 20 | CFIJ | CLARE FREIGHT INTERNATIONAL (USA) I | | | SCAC4 |
| 21 | CFIL | COLORADO CARTAGE INC | | | SCAC3 |
| 22 | CFIL | CHARIOTS OF FIRE LTD | | | SCAC4 |
| 23 | CFIM | CERTIFIED TRANSMISSION REBUILDERS I | | | SCAC3 |
| 24 | CFIN | CAL INDUSTRIES | | | SCAC3 |
| 25 | CFIO | CASCADE FREIGHT INC | | | SCAC4 |
| 26 | CFIP | CONCRETE FINISHING INC | | | SCAC4 |
| 27 | CFIQ | CERTIFIED WAREHOUSE & TRANSFER CO | | | SCAC3 |
| 28 | CFIR | CEBULA FUEL SERVICE INC | | | SCAC4 |
| 29 | CFIS | CROSSROADS FREIGHT SYSTEMS INC | | | SCAC3 |
| 30 | CFIS | CONESTOGA FUELS INC | | | SCAC4 |
| 31 | CFIT | CFI TRANSPORT INC | | | SCAC3 |
| 32 | CFIT | CFI TRANSPORT INC | | | SCAC4 |
| 33 | CFIT | Compagnia Ferroviaria Italiana | Real: CFI | I | TRAFFIC |
| 34 | CFIU | CFI INTERMODAL SRL | | I | BIC |
| 35 | CFIU | CHEM-FREIGHT, INC. | | | SCAC3 |
| 36 | CFIU | CONTAINER FACTORY JASI | | | SCAC4 |
| 37 | CFIW | CALIFORNIA FREIGHT INC | | | SCAC3 |
| 38 | CFIX | The Colorado Fuel & Iron Corp. | 7/1937-7/1965; eliminated 10/1966 | | NAKINA |
| 39 | CFIX | CF&I Steel Corp. | added 10/1966; 10/1966-1/1975; eliminated 1/1979 | | NAKINA |
| 40 | CFIX | The Colorado Fuel & Iron Co. | 7/1923-7/1935 | | NAKINA |
| 41 | CFIX | The Colorado Fuel & Iron Corp. | 4/38-7/65; eliminated 10/66 | | NRHS |
| 42 | CFIX | CF&I Steel Corp. | added 10/66; 10/66-1/75; eliminated 1/79 | | NRHS |
| 43 | CFIX | CF&I STEEL CORP. [COLORADO FUEL & IRON CO.] | | | PWRC |
| 44 | CFIX | COLORADO FUEL & IRON CORP THE | | | SCAC3 |
| 45 | CFIY | COUNTRY FRESH INC | | | SCAC4 |
| 46 | CFIZ | C. F. INDUSTRIES | | | PWRC |
