| 1 | CPK | Federal State Budgetary Organization Gagarin Research & Test Cosmonaut Training Center | Callsign: Cedar, | RUS | AVCODES |
| 2 | CPKA | CENTRAL PACKAGING CORPORATION | | | SCAC3 |
| 3 | CPKA | COPAKE AUCTION INC | | | SCAC4 |
| 4 | CPKB | CHESAPEAKE TRAILS BUS CO | | | SCAC3 |
| 5 | CPKB | COOPER TRUCKING LLC | | | SCAC4 |
| 6 | CPKC | CITY PACKING COMPANY INC | | | SCAC4 |
| 7 | CPKD | CAL PAK DELIVERY, INC | | | SCAC3 |
| 8 | CPKG | COOPER TRUCKING | | | SCAC3 |
| 9 | CPKH | CASE PORK ROLL COMPANY INC | | | SCAC4 |
| 10 | CPKI | COLORADO PACIFIC TRUCKING INC | | | SCAC3 |
| 11 | CPKJ | COPPER CREEK CARRIERS LLC | | | SCAC4 |
| 12 | CPKL | CLIPPERSHIP LTD | | | SCAC3 |
| 13 | CPKL | CLIPPERSHIP LTD | | | SCAC4 |
| 14 | CPKM | CHAMPION TRUCK LINES INC | | | SCAC3 |
| 15 | CPKN | COPECO TRUCKING INC | | | SCAC3 |
| 16 | CPKN | CPR TRANSPORT | | | SCAC4 |
| 17 | CPKO | CURP TRUCKING | | | SCAC4 |
| 18 | CPKP | CHAPPELL TRUCKING COMPANY INC | | | SCAC3 |
| 19 | CPKP | CHESAPEAK | | | SCAC4 |
| 20 | CPKQ | COOSA PACKAGE DELIVERY SERVICE INC | | | SCAC3 |
| 21 | CPKQ | CONCEPT PACKAGING GROUP | | | SCAC4 |
| 22 | CPKR | CRESCENT PARK CORPORATION | | | SCAC4 |
| 23 | CPKS | COAST PACKAGING & SUPPLIES INC | | | SCAC3 |
| 24 | CPKS | COAPSTICK, DAVE | | | SCAC4 |
| 25 | CPKT | CANADIAN PACIFIC TRANSPORT (US) INC | | | SCAC3 |
| 26 | CPKT | COPP, KENNETH M TRUCKING | | | SCAC4 |
| 27 | CPKU | CANADIAN PACIFIC RAILWAY COMPANY | | CDN | BIC |
| 28 | CPKV | CAPITOL TRUCK SERVICE INC | | | SCAC3 |
| 29 | CPKV | CIRCLE P TRUCKING | | | SCAC4 |
| 30 | CPKW | CANOPUS TANKERS, INC. | | | SCAC3 |
| 31 | CPKW | CHIP TRUCKING LLC | | | SCAC4 |
| 32 | CPKX | Central City Pickle Co. | 1/1950-1/1952 | | NAKINA |
| 33 | CPKX | Central City Pickle Co. | Jan-52 | | NRHS |
| 34 | CPKX | CENTRAL CITY PICKLE CO. | | | PWRC |
| 35 | CPKY | CAPS TRUCKLINES INC | | | SCAC4 |
