| 1 | PTB | Passaredo Transportes Aereos, S.A. | IATA: Y8, Callsign: Passaredo, IATA Prefix: 837, Ceased operations on 18 April 2002. | BR | AVCODES |
| 2 | PTB | Passaredo Transportes Aereos, S.A. | IATA: P3, Callsign: Passaredo, IATA designator changed to 2Z | BR | AVCODES |
| 3 | PTB | Passaredo Transportes Aereos, S.A. t/a VOEPASS | IATA: 2Z, Callsign: Passaredo, IATA designator changed to 2Z | BR | AVCODES |
| 4 | PTB | Passaredo Transportes Aereos | | | ICAO1 |
| 5 | PTBC | PETERSBURG OIL COMPANY | | | SCAC4 |
| 6 | PTBE | POWER TRANSPORTATION INC | | | SCAC4 |
| 7 | PTBF | PITE, BRIAN FREIGHT INC | | | SCAC4 |
| 8 | PTBH | PATENAUDE-TREMP | | | SCAC4 |
| 9 | PTBI | PRIME TRANSPORT INC | | | SCAC3 |
| 10 | PTBI | PRIME TRANSPORT INC | | | SCAC4 |
| 11 | PTBJ | PAOLI TRANSPORT | | | SCAC4 |
| 12 | PTBL | PREMIER TANK LINES | | | SCAC3 |
| 13 | PTBM | P.A.T. TRANSPORT | | | SCAC3 |
| 14 | PTBP | PRESTIGE TRANSPORT INC | | | SCAC4 |
| 15 | PTBQ | PROFESSIONAL TRANSPORTATION BROKERS | | | SCAC4 |
| 16 | PTBR | PATTERSON BROS TRUCKING | | | SCAC3 |
| 17 | PTBR | PETROBRAS AMERICA INC | | | SCAC4 |
| 18 | PTBS | POST TIME BUS SERVICE | | | SCAC3 |
| 19 | PTBU | GCATAINER BV | | NL | BIC |
| 20 | PTBU | GCATAINER BV | | | SCAC4 |
| 21 | PTBV | PERFORMANCE TRANSPORTATION CORP | | | SCAC4 |
| 22 | PTBW | PREMIER TRANSPORTATION | | | SCAC4 |
| 23 | PTBY | PIONNA TRANSPORT LLC | | | SCAC4 |
