| 1 | NCG | Nederlandse Kustwacht | Callsign: Netherlands Coastguard, | NL | AVCODES |
| 2 | NCG | Nederlandse Kustwacht | | | ICAO1 |
| 3 | NCGH | NORTHERN REFRIGERATOR LINE INC. | | | PWRC |
| 4 | NCGI | NC LEASING INC | | | SCAC4 |
| 5 | NCGO | NAVICARGO INC | | | SCAC4 |
| 6 | NCGS | NASSAR CARTING AND STORAGE | | | SCAC3 |
| 7 | NCGS | NORTHSTAR RECYCLING GROUP INC | | | SCAC4 |
| 8 | NCGT | NORTH COUNTRY GRANITE INC | | | SCAC4 |
| 9 | NCGU | NANJING LOCAL RAILWAY CO., LTD. | | PRC | BIC |
| 10 | NCGU | *GENSTAR CORPORATION | | | PWRC |
| 11 | NCGU | *TIP INTERMODAL SERVICES | | | PWRC |
| 12 | NCGU | Genstar Corporation | | | RSRV |
| 13 | NCGU | TIP Intermodal Services | | | RSRV |
| 14 | NCGX | Merchants Despatch Transportation Corp. | added 7/1962; 7/1965-10/1966; eliminated 7/1968 | | NAKINA |
| 15 | NCGX | Northern Refrigerator Line Inc. | 1/1950-4/1961; eliminated 7/1962 | | NAKINA |
| 16 | NCGX | Northern Refrigerator Line Inc. | 1/52-4/61 | | NRHS |
| 17 | NCGX | Merchants Despatch Transportation Corp. | 7/65-10/66; eliminated 7/68 | | NRHS |
| 18 | NCGX | *NORTHERN REFRIGERATOR LINE | | | PWRC |
