| 1 | PKR | Pakker Avio Ltd. | Callsign: Pakker Avio, | EST | AVCODES |
| 2 | PKR | Pakker Avio | | | ICAO1 |
| 3 | PKRA | PARKER, S A TRUCKING INC | | | SCAC4 |
| 4 | PKRAC | Przedsiębiorstwo Komunalne Racibórz | | PL | TRAFFIC |
| 5 | PKRAD | PKS Radom | | PL | TRAFFIC |
| 6 | PKRAK | PKS w Krakowie S.A. | | PL | TRAFFIC |
| 7 | PKRAS | Przedsiębiorstwo Państwowej Komunikacji Samochodowej w Kraśniku | | PL | TRAFFIC |
| 8 | PKRB | PARKER BOAT LINE INC | | | SCAC3 |
| 9 | PKRC | PACKERS TRANSPORT COMPANY | | | SCAC3 |
| 10 | PKRF | PARKER ROOFING CO INC | | | SCAC3 |
| 11 | PKRG | PICKERING TRANSFER | | | SCAC3 |
| 12 | PKRI | PARKER INDUSTRIAL S DE RL DE | | | SCAC4 |
| 13 | PKRK | POCKET ROCKET INC | | | SCAC3 |
| 14 | PKRK | PACK, RICK | | | SCAC4 |
| 15 | PKRL | PICKETT, ROBERT L CONTRACTOR INC | | | SCAC3 |
| 16 | PKRL | PICKETT, ROBERT L CONTRACTOR INC | | | SCAC4 |
| 17 | PKRM | PARKS, R M INC | | | SCAC4 |
| 18 | PKRN | PARKER TRUCKING | | | SCAC3 |
| 19 | PKRN | PACKARD TRANSPORTATION INC | | | SCAC4 |
| 20 | PKROS | PKS Krosno | | PL | TRAFFIC |
| 21 | PKRQ | PARKER, WILLIAM ASSOCIATES INC | | | SCAC3 |
| 22 | PKRQ | PARKER, WILLIAM ASSOCIATES INC | | | SCAC4 |
| 23 | PKRS | PARKER REFRIGERATED SERVICE INC | | | SCAC3 |
| 24 | PKRT | PARKER, TERRY TRUCKING CO | | | SCAC4 |
| 25 | PKRY | PARK READY MIX | | | SCAC3 |
| 26 | PKRYB | PKS Rybnik | | PL | TRAFFIC |
| 27 | PKRZ | PINEVILLE KRAFT CO. | | | PWRC |
