| 1 | NSF | Northamptonshire School Of Flying Ltd. | Callsign: Norton, | GB | AVCODES |
| 2 | NSF | Northamptonshire School of Flying | | | ICAO1 |
| 3 | NSFC | NORTH STAR FORWARDING CO | | | SCAC3 |
| 4 | NSFC | NINE ZERO SIX ZERO-FOUR EIGHT ONE Z | | | SCAC4 |
| 5 | NSFH | NEW STAR FREIGHT INC | | | SCAC4 |
| 6 | NSFI | NORTH SHORE FUEL OIL INC | | | SCAC4 |
| 7 | NSFL | NORTH SHORE FUEL INC | | | SCAC4 |
| 8 | NSFS | NEW STAR FREIGHT SERVICE INC | | | SCAC3 |
| 9 | NSFS | NEW STAR FREIGHT SERVICE INC | | | SCAC4 |
| 10 | NSFZ | NORFOLK SOUTHERN RAILWAY | | | PWRC |
| 11 | NSFZ | Norfolk Southern Railway | | | RSRV |
| 12 | NSFZ | NORFOLK SOUTHERN RAILWAY COMPANY (N | | | SCAC4 |
