| 1 | NOC | Norcopter AS | | N | AVCODES |
| 2 | NOC | Ascor Flyservice A.S. | Callsign: Norscraft, | N | AVCODES |
| 3 | NOC | Norcopter | | | ICAO1 |
| 4 | NOCA | NITROUS OXIDE OF CANADA | | | SCAC4 |
| 5 | NOCB | NORTON COATED ABRASIVE DIV | | | SCAC3 |
| 6 | NOCB | NINE ONE FIVE FIVE-ONE THREE EIGHT | | | SCAC4 |
| 7 | NOCC | NORIGE OIL CO INC | | | SCAC4 |
| 8 | NOCD | NORDMAN TRUCKING | | | SCAC4 |
| 9 | NOCF | NINE ONE THRE ONE-FOUR SIX NINE ZER | | | SCAC4 |
| 10 | NOCG | NORTH CENTRAL TRUCKING INC | | | SCAC3 |
| 11 | NOCH | NORTH COAST CARTAGE INC | | | SCAC3 |
| 12 | NOCH | NOLT, AARON JR | | | SCAC4 |
| 13 | NOCI | NORTHERN TRUCK INC | | | SCAC3 |
| 14 | NOCI | NEIL OIL COMPANY INC | | | SCAC4 |
| 15 | NOCJ | NORTH CENTRAL JOBBERS INC | | | SCAC3 |
| 16 | NOCK | NORTON TRUCKING COMPANY INC | | | SCAC3 |
| 17 | NOCL | NEW ORLEANS CONTAINER TERMINAL & DR | | | SCAC3 |
| 18 | NOCM | NORTH COUNTRY MOVING & STORAGE | | | SCAC3 |
| 19 | NOCM | NORTH COUNTRY MOVING & STORAGE | | | SCAC4 |
| 20 | NOCO | NORTHERN SHIPPING CO | | | SCAC3 |
| 21 | NOCP | NORTH CANTON TRANSFER CO | | | SCAC4 |
| 22 | NOCQ | NORTHCOTT INC | | | SCAC3 |
| 23 | NOCR | NORTH CENTRAL SUPPLY INC | | | SCAC3 |
| 24 | NOCT | NORTH CENTRAL LINES INC | | | SCAC3 |
| 25 | NOCT | NOC TRUCKING | | | SCAC4 |
| 26 | NOCU | NORA S.p.A. | | I | BIC |
| 27 | NOCU | NORA SPA | | | SCAC4 |
| 28 | NOCV | NORTH CENTRAL TRANSPORTATION INC | | | SCAC3 |
| 29 | NOCW | NORTH COAST WAREHOUSE & TRANSPORTAT | | | SCAC3 |
| 30 | NOCX | New Orleans Coffee Co., Ltd. | 7/1923-7/1932 | | NAKINA |
| 31 | NOCX | *NEW ORLEANS COFFEE CO., LTD. | | | PWRC |
| 32 | NOCX | *NORTH CAROLINA RAILROAD MUSEUM | | | PWRC |
