| 1 | PNI | Aerovias de Poniente, S.A. de C.V. | Callsign: Aero Poniente, | MEX | AVCODES |
| 2 | PNI | Przedsiębiorstwo Napraw Infrastruktury Sp. z o.o. | | PL | VKM |
| 3 | PNIA | PANIA SHIPPING CORPORATION | | | SCAC3 |
| 4 | PNIB | PATTERSON, NICHOLE | | | SCAC4 |
| 5 | PNIC | PENSCO INC | | | SCAC3 |
| 6 | PNII | PROTRANS INTERNATIONAL INC | | | SCAC4 |
| 7 | PNIM | P & I MEDICAL TRANSPORT | | | SCAC3 |
| 8 | PNIN | PENTCO INDUSTRIES INC | | | SCAC4 |
| 9 | PNIT | PLAN-IT TRAVEL INC | | | SCAC3 |
| 10 | PNIU | PT. PELAYARAN NASIONAL INDONESIA | | RI | BIC |
