| 1 | CGR | BLOM CGR S.p.A. | Callsign: Comprip, Name changed to Compagnia Generale Ripreseaeree S.p.A. | I | AVCODES |
| 2 | CGR | Compagnia Generale Ripreseaeree S.p.A. | Callsign: Comprip, Name changed from BLOM CGR S.p.A. | I | AVCODES |
| 3 | CGR | Compagnia Generale Ripreseaeree | | | ICAO1 |
| 4 | CGR | CG Ry. Inc. | added 1/2002; 7/2005 | | NAKINA |
| 5 | CGR | Central Gulf Ry. Inc. | added 1/2001; eliminated 1/2002 | | NAKINA |
| 6 | CGR | Intercolonial Ry. of Canada (Canadian National Rys.) | 7/1923 | | NAKINA |
| 7 | CGR | Canadian Government Rys. (Canadian National Rys.) | 8/1920-7/1923 | | NAKINA |
| 8 | CGR | Canadian Government Rys. (Canadian National Rys.) | 23-Jul | | NRHS |
| 9 | CGR | Central Gulf Ry. Inc. | added 1/2001 | | NRHS |
| 10 | CGR | *CANADIAN NATIONAL RWYS. [CANADIAN GOVERNMENT RWYS.; INTERCOLONIAL RWY. OF CANADA] | | | PWRC |
| 11 | CGR | +CG RWY., INC. [CENTRAL GULF RWY., INC.} | | | PWRC |
| 12 | CGR | CG Railway | | | RSRV |
| 13 | CGR | CG RAILWAY INC | | | SCAC4 |
| 14 | CGR | Columbus & Greenville Railroad | | USA | TRAFFIC |
| 15 | CGRA | CRUZ GARZA, JOEL | | | SCAC4 |
| 16 | CGRB | CUMMINGS, ROBERT TRUCKING | | | SCAC3 |
| 17 | CGRD | COLEMAN, GARY D TRUCKING | | | SCAC3 |
| 18 | CGRD | COURTAGE R D INC | | | SCAC4 |
| 19 | CGRE | CGR TRANSPORTATION INC | | | SCAC4 |
| 20 | CGRF | COPENHAGEN REEFERS/COOPERATING REEF | | | SCAC3 |
| 21 | CGRG | CRIGHTON, GEORGE D | | | SCAC3 |
| 22 | CGRH | CAMIONETAS GARCIA | | | SCAC3 |
| 23 | CGRH | CARADOC GREEN ROOFS LTD | | | SCAC4 |
| 24 | CGRI | CERTIFIED GROCERS OF ILLINOIS INC | | | SCAC3 |
| 25 | CGRJ | CALAVO GROWERS | | | SCAC4 |
| 26 | CGRL | COUGAR LOGISTICS INC | | | SCAC4 |
| 27 | CGRM | COUGAR MOTOR TRANSIT INC | | | SCAC3 |
| 28 | CGRN | COUGAR INCORPORATED | | | SCAC3 |
| 29 | CGRO | CERTIFIED GROCERS TRANSPORTATION CO | | | SCAC3 |
| 30 | CGRQ | CREAGER TRUCKING CO | | | SCAC3 |
| 31 | CGRR | CHARGER ROAD TRACK | | | SCAC4 |
| 32 | CGRS | CARGO RATE SERVICES INC | | | SCAC3 |
| 33 | CGRS | COMPANIA GIRASOL S A | | | SCAC4 |
| 34 | CGRU | CARGOR BIZKAIA S.L. | | E | BIC |
| 35 | CGRV | CHINA GROVE TRANSPORT INC | | | SCAC4 |
| 36 | CGRW | CG RAILWAY | | | SCAC3 |
| 37 | CGRW | CG RAILWAY INC | | | SCAC4 |
| 38 | CGRX | Consolidated Grain and Barge Co. | added 7/1988; 1/1994-7/2005 | | NAKINA |
| 39 | CGRX | Canadian General Transit Co., Ltd. | added 4/1961; 4/1961; eliminated 10/1962 | | NAKINA |
| 40 | CGRX | Canadian General Transit Co., Ltd. | added 4/61; 4/61 | | NRHS |
| 41 | CGRX | Consolidated Grain and Barge Co. | added 7/88; 1/94-7/2000 | | NRHS |
| 42 | CGRX | *CANADIAN GENERAL TRANSIT CO., LTD. | | | PWRC |
| 43 | CGRX | +(CARGIL) CONSOLIDATED GRAIN AND BARGE COMPANY | | | PWRC |
| 44 | CGRX | Consolidated Grain and Barge | | | RSRV |
| 45 | CGRX | CONSOLIDATED GRAIN AND BARGE | | | SCAC4 |
| 46 | CGRX | Consolidated Grain and Barge Co. | | CDN | TRAFFIC |
| 47 | CGRY | CARRIZO GORGE RAILWAY, INC. | | | PWRC |
| 48 | CGRY | Carrizo Gorge Railway | | | RSRV |
| 49 | CGRY | CRIST, GREGORY | | | SCAC4 |