| 701 | PATA | PATRIOT TANK LINES INC | | | SCAC4 |
| 702 | PATB | P A T AUTO TRANSPORT INC | | | SCAC4 |
| 703 | PATC | PORT AUTHORITY TRANSIT COMMISSION | | | PWRC |
| 704 | PATC | PATCO TRANSPORT SYSTEMS INC | | | SCAC3 |
| 705 | PATCO | PORT AUTHORITY TRANSIT CORPORATION (PHILADELPHIA) | | | PWRC |
| 706 | PATCO | Port Authority Transit Corporation | City: Pittsburgh | USA | TRAFFIC |
| 707 | PATD | PATHFINDER TRUCKING | | | SCAC3 |
| 708 | PATD | PATRIQUIN, DOUGLAS TRUCKING AND SER | | | SCAC4 |
| 709 | PATE | PATE STEVEDORE COMPANY | | | SCAC4 |
| 710 | PATG | PATS TOWING SERVICE INC | | | SCAC3 |
| 711 | PATG | PATRIOT LOGISTICS INC | | | SCAC4 |
| 712 | PATH | PORT AUTHORITY TRANS HUDSON (NY-NJ) | | | PWRC |
| 713 | PATH | P A TRANS | | | SCAC4 |
| 714 | PATH | Port Authority Trans-Hudson | | USA | TRAFFIC |
| 715 | PATI | PATTIE, CLARE TRUCKING INC | | | SCAC3 |
| 716 | PATI | PATRIOT INTERMODAL TRANSPORT INC | | | SCAC4 |
| 717 | PATJ | PATTONS INC | | | SCAC3 |
| 718 | PATJ | P & A TRADING INC | | | SCAC4 |
| 719 | PATK | PAYNE TRUCKING CO | | | SCAC4 |
| 720 | PATL | PARRISH TRANSFER LINE | | | SCAC3 |
| 721 | PATL | PARACLETE TRANSPORT LTD | | | SCAC4 |
| 722 | PATM | PATMOS SHIPPING CO LTD | | | SCAC4 |
| 723 | PATN | PANATHENA MARITIME INC. | | | SCAC3 |
| 724 | PATN | PATRIOT TRANSPORT INC | | | SCAC4 |
| 725 | PATO | PATTOM CORP | | | SCAC3 |
| 726 | PATP | PATRICK TRANSPORT CO INC | | | SCAC3 |
| 727 | PATQ | PARIS TRANSFER | | | SCAC3 |
| 728 | PATR | PATTERSON TRUCKING | | | SCAC4 |
| 729 | PATS | PAULS TRUCKING SERVICE INC | | | SCAC3 |
| 730 | PATT | PALMA TRUCKING | | | SCAC3 |
| 731 | PATT | PAUL TRANSPORTATION INC | | | SCAC4 |
| 732 | PATU | PACER STACKTRAIN | | | SCAC4 |
| 733 | PATV | PATS MOVING & STORAGE | | | SCAC3 |
| 734 | PATW | PATTERSON TRUCKING | | | SCAC3 |
| 735 | PATX | Pacific Tank Line | 7/1932-4/1938 | | NAKINA |
| 736 | PATX | Pacific Tank Line | Apr-38 | | NRHS |
| 737 | PATX | *PACIFIC TANK LINE | | | PWRC |
| 738 | PATX | *PATON CORPORATION | | | PWRC |
| 739 | PATX | PATON CORPORATION | | | SCAC4 |
| 740 | PATY | PANAMERICAN TANKERS INC. | | | SCAC3 |
| 741 | PATZ | Pacer Stacktrain | | | RSRV |
| 742 | PATZ | PACER STACKTRAIN | | | SCAC4 |
| 743 | PAU | Locavions Aero Services | Callsign: Adour, | F | AVCODES |
| 744 | PAU | Palau Airways Corp | IATA: P7, Callsign: Palauairways, IATA Prefix: 389, Founded in 2011. Ceased operations in April 2013. | PAL | AVCODES |
| 745 | PAUA | PRECISION AUTO | | | SCAC4 |
| 746 | PAUC | PAULSON TRUCKING CO | | | SCAC3 |
| 747 | PAUD | PAULS DELIVERY SERVICE | | | SCAC3 |
| 748 | PAUE | PAULS EXPRESS | | | SCAC3 |
| 749 | PAUF | PETCON AIR FREIGHT (USA) INC | | | SCAC4 |
| 750 | PAUI | PAULIN TRANSPORTATION INC | | | SCAC3 |
| 751 | PAUJ | PAUL, JERRY TRUCKING | | | SCAC3 |
| 752 | PAUK | PAULK MOVING & STORAGE CO | | | SCAC3 |
| 753 | PAUL | PAUL SHIPPING CO NEW YORK NY | | | SCAC3 |
| 754 | PAUM | PAULS MOBILE SERVICE | | | SCAC3 |
| 755 | PAUP | PAULS PICK-UP TRUCKING | | | SCAC4 |
| 756 | PAUR | PAULS TRUCKING | | | SCAC3 |
| 757 | PAUT | Consolidated Rail Corp. | 1/1980 | | NAKINA |
| 758 | PAUT | Pennsylvania and Atlantic R.R. Co. | 1/1975 | | NAKINA |
| 759 | PAUT | Pennsylvania and Atlantic R.R. Co. | Jan-75 | | NRHS |
| 760 | PAUT | Consolidated Rail Corp. | Jan-80 | | NRHS |
| 761 | PAUT | CONSOLIDATED RAIL CORP. [PENNSYLVANIA & ATLANTIC RAILROAD CO.] | | | PWRC |
| 762 | PAUT | Pennsylvania and Atlantic Railroad (Conrail) | | | RSRV |
| 763 | PAUT | PAULSEN TRUCKING | | | SCAC3 |
| 764 | PAUT | PIKE AUTOMATION | | | SCAC4 |
| 765 | PAUW | PAULAS TOWING INC | | | SCAC4 |
| 766 | PAV | Vip Avia | Callsign: Nicol, | KZ | AVCODES |
| 767 | PAV | Atorie Air, Inc. | Callsign: Atorie-Air, | USA | AVCODES |
| 768 | PAV | ProAir Aviation GmbH | Callsign: Brilliant, | D | AVCODES |
| 769 | PAV | VIP Avia | | | ICAO1 |
| 770 | PAVB | PAVELKA, BERNARD TRUCKING INC | | | SCAC3 |
| 771 | PAVB | PAVELKA, BERNARD TRUCKING INC | | | SCAC4 |
| 772 | PAVC | PANTHER VALLEY CARRIERS | | | SCAC3 |
| 773 | PAVD | PROSHOW AUDIO VIDEO BROADCAST | | | SCAC4 |
| 774 | PAVE | PAVELS EXPRESS | | | SCAC3 |
| 775 | PAVELEC | Usługi Transportowe Krzysztof Pawelec | | PL | TRAFFIC |
| 776 | PAVG | PRECISION ARRIVAL LOGISTICS INC | | | SCAC4 |
| 777 | PAVH | PAVLICH INC | | | SCAC3 |
| 778 | PAVI | PRESTIGE AUDIO VISUAL INC | | | SCAC4 |
| 779 | PAVK | PAVEK TRUCKING | | | SCAC3 |
| 780 | PAVL | PAVLICEK FARMS | | | SCAC4 |
| 781 | PAVM | PAWTUXET VALLEY MOTOR EXPRESS, INC | | | SCAC3 |
| 782 | PAVN | PAVELKA, BEN TRUCKING | | | SCAC4 |
| 783 | PAVO | PAINO AVOCADO CO INC | | | SCAC3 |
| 784 | PAVQ | PAV FUELS | | | SCAC4 |
| 785 | PAVT | PRATT, AL TRUCKING | | | SCAC3 |
| 786 | PAVT | PARK AVENUE TURF INC | | | SCAC4 |
| 787 | PAVU | LOGIKA LTD | | GR | BIC |
| 788 | PAVX | DMG EQUIPMENT CO., LTD d/b/a PAVERS SUPPLY CO. | | | PWRC |
| 789 | PAVX | DMG EQUIPMENT COMPANY LTD D/B/A PAV | | | SCAC4 |
| 790 | PAW | Polonia Airways | Callsign: Polonia, | PL | AVCODES |
| 791 | PAW | Pointair Burkina | | | ICAO1 |
| 792 | PAWC | PATTERSON STORAGE WAREHOUSE COMPANY | | | SCAC3 |
| 793 | PAWE | PATHWAY EXPRESS LTD | | | SCAC3 |
| 794 | PAWH | PATTEN, WHITEY TRANSPORTATION SERVI | | | SCAC3 |
| 795 | PAWK | PACIFIC AMERICAN WAREHOUSING & TRUC | | | SCAC3 |
| 796 | PAWL | PAWLAK, G & SON CARTAGE CO INC | | | SCAC3 |
| 797 | PAWM | PATCHETT, WM TRUCKING INC | | | SCAC4 |
| 798 | PAWN | PAWNEE TRANSFER, INC | | | SCAC3 |
| 799 | PAWN | PAWNEE TRANSFER INC | | | SCAC4 |
| 800 | PAWO | PALAZUELOS, ALFREDO G | | | SCAC3 |
