| 1 | NIM | Airnimbus | Callsign: Nimjet, | P | AVCODES |
| 2 | NIMC | NAPARANO iRON & METAL | | | PWRC |
| 3 | NIMG | NEW IMAGE TRANSPORTATION INC | | | SCAC3 |
| 4 | NIMK | NILMEIER, KEITH A | | | SCAC3 |
| 5 | NIMO | NIMOCKS OIL CO INC | | | SCAC4 |
| 6 | NIMQ | NEWARK IRON AND METAL CO | | | SCAC3 |
| 7 | NIMR | NILMEIER, GLENN K | | | SCAC3 |
| 8 | NIMS | NRC INVESTMENT MEXICO SA DE CV | | | SCAC4 |
| 9 | NIMT | NORTH IDAHO MOBILE TOWING | | | SCAC3 |
| 10 | NIMU | RRT RHEIN-RUHR TERMINAL GESELLSCHAFT FUR CONTAINER | | D | BIC |
| 11 | NIMU | NEW INDIA MARITIME AGENCIES PVT. | | | SCAC3 |
| 12 | NIMU | RRT RHEIN-RUHR TERMINAL GESELLSCHAF | | | SCAC4 |
| 13 | NIMX | Naparano/Railroad Division | added 10/1981; eliminated 4/1984 | | NAKINA |
| 14 | NIMX | Naparano Iron and Metal Co. | added 1/1978; 1/1980; eliminated 10/1981 | | NAKINA |
| 15 | NIMX | Naparano Iron and Metal Co. | added 1/78; 1/80; eliminated 10/81 | | NRHS |
| 16 | NIMX | Naparano/Railroad Division | added 10/81; eliminated 4/84 | | NRHS |
| 17 | NIMX | NAPORANO IRON & METAL, RAILROAD DIV. | | | PWRC |
| 18 | NIMX | Naporano | | | RSRV |
| 19 | NIMX | Naparano Iron and Metal Co. | | USA | TRAFFIC |
