| 1 | NYA | Noy Avia | | AM | AVCODES |
| 2 | NYA | New York Air | IATA: NY, | USA | AVCODES |
| 3 | NYA | New York Airways, Inc. | IATA: NY, Callsign: New York, | USA | AVCODES |
| 4 | NYA | Nanyah Aviation Ltd. | Callsign: Nanyah, | IL | AVCODES |
| 5 | NYA | Nanyah Aviation | | | ICAO1 |
| 6 | NYA | New York & Atlantic Ry. Co. | added 1/1998; 7/2000-7/2005 | | NAKINA |
| 7 | NYA | New York & Atlantic Ry. Co. | added 1/98; 7/2000 | | NRHS |
| 8 | NYA | NEW YORK & ATLANTIC RAILWAY | | | PWRC |
| 9 | NYA | New York and Atlantic Railway | | | RSRV |
| 10 | NYA | NEW YORK & ATLANTIC RAILWAY COMPANY | | | SCAC4 |
| 11 | NYA | New York & Atlantic | | USA | TRAFFIC |
| 12 | NYAB | NEW YORK AIRBUS LTD | | | SCAC3 |
| 13 | NYAC | NAVIERA YACU PUMA S A | | | SCAC4 |
| 14 | NYAF | NEYLON AIR SERVICE | | | SCAC3 |
| 15 | NYAF | NEELEY, BILL E TRANSPORTATION INC | | | SCAC4 |
| 16 | NYAR | NYARI TRUCKING INC | | | SCAC3 |
| 17 | NYAS | New York Airport Service | City: New York | US-NY | TRAFFIC |
| 18 | NYAU | N.Y.K. LINE | | | PWRC |
| 19 | NYAU | NYK Line | | | RSRV |
| 20 | NYAX | NEW YORK AIR BRAKE CORP. | | | PWRC |
