| 9601 | PTLN | PALATEC TRUCKING LLC | | | SCAC4 |
| 9602 | PTLO | PETALUMA VAN & STORAGE | | | SCAC3 |
| 9603 | PTLP | PRO TRUCK LINES, INC | | | SCAC3 |
| 9604 | PTLP | PALM TREE LOGISTICS INC | | | SCAC4 |
| 9605 | PTLQ | PIERCE TRUCK LINE | | | SCAC3 |
| 9606 | PTLR | PAUTLER OIL SERVICE INC | | | SCAC4 |
| 9607 | PTLRTJ | PT LRT Jakarta | | RI | TRAFFIC |
| 9608 | PTLS | PETTIS LOGISTICS LLC | | | SCAC4 |
| 9609 | PTLT | PREFERRED TRANSLOCATION SYSTEMS INC | | | SCAC3 |
| 9610 | PTLU | PLC LTD | | RUS | BIC |
| 9611 | PTLU | PACIFIC ISLANDS TRANSPORT LINE | | | SCAC3 |
| 9612 | PTLV | PERIMETER TRANSPORTATION LTD | | | SCAC3 |
| 9613 | PTLV | PROMOTIVE TRANSPORT LTD | | | SCAC4 |
| 9614 | PTLW | PTL INTERMODAL INC | | | SCAC3 |
| 9615 | PTLX | General Electric Rail Services Corp. | added 1/2000; 7/2000-7/2005 | | NAKINA |
| 9616 | PTLX | General Electric Railcar Services Corp. | added 10/1992; 1/1994; eliminated 1/2000 | | NAKINA |
| 9617 | PTLX | Itel Rail Corp. | added 1/1990; eliminated 10/1992 | | NAKINA |
| 9618 | PTLX | Pullman Leasing Co. | added 4/1981; eliminated 1/1990 | | NAKINA |
| 9619 | PTLX | Pullman Leasing Co., a Subsidiary of Pullman Inc. | added 1/1976; 1/1980; eliminated 4/1981 | | NAKINA |
| 9620 | PTLX | Pullman Transport Leasing Co., a Subsidiary of Pullman Inc. | added 10/1970; 1/1975; eliminated 1/1976 | | NAKINA |
| 9621 | PTLX | John H. Grace Co. | eliminated 4/1957 | | NAKINA |
| 9622 | PTLX | Duredo Co., care of John H. Grace Co. | 4/1947-7/1954 | | NAKINA |
| 9623 | PTLX | Duredo Co., care of National Refining Co. | 1/1946 | | NAKINA |
| 9624 | PTLX | The National Refining Co. (formerly Peerless Transit Line) | 7/1935-1/1945 | | NAKINA |
| 9625 | PTLX | Canadian Oil Companies, Ltd. (formerly Peerless Transit Line) | 7/1935 | | NAKINA |
| 9626 | PTLX | Peerless Transit Line | 8/1920-7/1932 | | NAKINA |
| 9627 | PTLX | The National Refining Co. (formerly Peerless Transit Line) | Apr-38 | | NRHS |
| 9628 | PTLX | Duredo Co., care of John H. Grace Co. | Jan-52 | | NRHS |
| 9629 | PTLX | John H. Grace Co. | eliminated 4/57 | | NRHS |
| 9630 | PTLX | Pullman Transport Leasing Co., a Subsidiary of Pullman Inc. | added 10/70; 1/75 | | NRHS |
| 9631 | PTLX | Pullman Leasing Co., a Subsidiary of Pullman Inc. | 1/80; eliminated 4/81 | | NRHS |
| 9632 | PTLX | Pullman Leasing Co. | added 4/81; eliminated 1/90 | | NRHS |
| 9633 | PTLX | Itel Rail Corp. | added 1/90; eliminated 10/92 | | NRHS |
| 9634 | PTLX | General Electric Railcar Services Corp. | added 10/92; 1/94; eliminated 1/2000 | | NRHS |
| 9635 | PTLX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | | NRHS |
| 9636 | PTLX | *JOHN H. GRACE CO. [DUREDO CO.; NATIONAL REFINING CO.; PEERLESS TRANSIT LINE] | | | PWRC |
| 9637 | PTLX | +(NATX) GENERAL ELECTRIC RAIL SERVICES CORP. [ITEL RAIL CORP.; PULLMAN LEASING CO.] | | | PWRC |
| 9638 | PTLX | Pullman Transport Leasing (GE Rail Services) | | | RSRV |
| 9639 | PTLX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |
| 9640 | PTLX | Pullman Transport Leasing Co. | | USA | TRAFFIC |
| 9641 | PTLY | PETERS TRUCK LINES | | | SCAC3 |
| 9642 | PTM | Southeastern Airways Corporation | Callsign: Postman, ICAO designator cancelled. | USA | AVCODES |
| 9643 | PTM | Southeastern Airways | | | ICAO1 |
| 9644 | PTM | ST Rail System | 7/2000-7/2005 | | NAKINA |
| 9645 | PTM | Portland Terminal Co. | 1/1994; eliminated 10/1997 | | NAKINA |
| 9646 | PTM | Portland Terminal Co. (Me.) | 1/1975-1/1980 | | NAKINA |
| 9647 | PTM | Portland Terminal Co. | 10/1957-4/1970 | | NAKINA |
| 9648 | PTM | Portland Terminal Co. | 10/57-4/70 | | NRHS |
| 9649 | PTM | Portland Terminal Co. (Me.) | 1/75-1/80 | | NRHS |
| 9650 | PTM | Portland Terminal Co. | 1/94; eliminated 10/97 | | NRHS |
| 9651 | PTM | ST Rail System | Jul-00 | | NRHS |
| 9652 | PTM | *(MEC) PORTLAND TERMINAL CO. | | | PWRC |
| 9653 | PTM | +ST RAIL SYSTEM | | | PWRC |
| 9654 | PTM | Portland Terminal (Pan Am Railways) | | | RSRV |
| 9655 | PTM | Portland Terminal Co. | | USA | TRAFFIC |
| 9656 | PTMA | PANSTAR SPECIAL MARITIME ENTERPRISE | | | SCAC4 |
| 9657 | PTMB | PITTMAN BROTHERS TRANSPORTATION | | | SCAC3 |
| 9658 | PTMC | PEEK, TIM & SON LLC | | | SCAC4 |
| 9659 | PTME | PROMPT MOTOR EXPRESS | | | SCAC3 |
| 9660 | PTME | PLACAS TERMODINAMICAS SA DE CV | | | SCAC4 |
| 9661 | PTMG | PATHMARK TRANSPORTATION MARKETING C | | | SCAC3 |
| 9662 | PTMH | PETERS MOBILE HOME TRANSPORTING | | | SCAC3 |
| 9663 | PTMI | PEAVLER, T MOVING SYSTEMS | | | SCAC3 |
| 9664 | PTMJ | PHILLIPS TOOL & MOULD LONDON LTD | | | SCAC4 |
| 9665 | PTMK | PETROLEUM TERMINALS | | | SCAC3 |
| 9666 | PTMK | PETROLEUM TERMINALS INC | | | SCAC4 |
| 9667 | PTML | PRIME TIME DELIVERY | | | SCAC4 |
| 9668 | PTMM | PALOMAR TRANSIT MIX CO | | | SCAC3 |
| 9669 | PTMM | PT MERANTI MARITIME | | | SCAC4 |
| 9670 | PTMN | PITTMAN, ROBERT L, MOVING & STRGE | | | SCAC3 |
| 9671 | PTMN | PITTMAN, M ENTERPRISES L C | | | SCAC4 |
| 9672 | PTMO | PROTECTIVE TREATMENTS INC | | | SCAC3 |
| 9673 | PTMO | PTM COURIER | | | SCAC4 |
| 9674 | PTMQ | PRIME TIME TOURS | | | SCAC3 |
| 9675 | PTMQ | PETROMARINE | | | SCAC4 |
| 9676 | PTMR | PORT MARINE SERVICES INC | | | SCAC3 |
| 9677 | PTMR | PLANTATION M R | | | SCAC4 |
| 9678 | PTMS | PRIME TIME MESSENGER INC | | | SCAC4 |
| 9679 | PTMT | PORTLAND MOTOR TRANSPORT | | | SCAC3 |
| 9680 | PTMT | PORTLAND MOTOR TRANSPORT | | | SCAC4 |
| 9681 | PTMV | PITTMAN, VERNON VAN LINES INC | | | SCAC3 |
| 9682 | PTMV | PETROMAR LIMITED | | | SCAC4 |
| 9683 | PTMW | PROSSER, JAMES W | | | SCAC3 |
| 9684 | PTMX | Pittsburgh Transportation Museum Society | 7/2005 (not listed) | | NAKINA |
| 9685 | PTMX | PITTSBURGH TRANSPORTATION MUSEUM SOCIETY | | | PWRC |
| 9686 | PTMX | Pittsburgh Transportation Museum Society | | | RSRV |
| 9687 | PTMX | PITTSBURGH TRANSPORTATION MUSEUM SO | | | SCAC4 |
| 9688 | PTMY | PROTEUS MANAGEMENT COMPANY INC | | | SCAC3 |
| 9689 | PTN | Pantanal Linhas Aereas Sul-Matogrossenses, S.A. | Callsign: Pantanal, Designator P8 recalled by IATA. Designator P8 reinstated by IATA | BR | AVCODES |
| 9690 | PTN | Pantanal Linhas Aereas Sul-Matogrossenses, S.A. | IATA: GP, Callsign: Pantanal, IATA Prefix: 961, Founded in 1990. Commenced operations in 1993. Merged with TAM on 26 March 2013. | BR | AVCODES |
| 9691 | PTN | Platoon Aviation GmbH & Co. KG | Callsign: Platoon, | D | AVCODES |
| 9692 | PTN | Pantanal Linhas AA~©reas | IATA: P8 | | ICAO1 |
| 9693 | PTNA | PATTON AIR DELIVERY | | | SCAC3 |
| 9694 | PTNB | PATTERSON, BOB TRUCKING INC | | | SCAC3 |
| 9695 | PTNC | PATTERSON TRUCKING COMPANY | | | SCAC3 |
| 9696 | PTNC | PETRAN LLC | | | SCAC4 |
| 9697 | PTND | POTTERS INDUSTRIES INC | | | SCAC3 |
| 9698 | PTND | PATTERSON TRUCKING | | | SCAC4 |
| 9699 | PTNE | PIANO TRANSPORTS CO INC | | | SCAC3 |
| 9700 | PTNG | PAL TRUCKING INC | | | SCAC3 |
