| 3501 | PGMH | PULLIG, MICHAEL | | | SCAC4 |
| 3502 | PGMI | PROGRESSIVE INTERMODAL INC | | | SCAC4 |
| 3503 | PGMK | PETTENGILL, MIKE TRUCKING | | | SCAC4 |
| 3504 | PGML | PARAGON MOTOR LINES INC | | | SCAC4 |
| 3505 | PGMN | PGM TRUCKING | | | SCAC4 |
| 3506 | PGMO | PAGE MOVING & STORAGE CO | | | SCAC3 |
| 3507 | PGMQ | PANGBURN MOVING & STORAGE INC | | | SCAC3 |
| 3508 | PGMR | P G M TRANSPORT | | | SCAC4 |
| 3509 | PGMT | PEGASUS MESSENGER & TRUCKING SERVIC | | | SCAC3 |
| 3510 | PGMV | PEGASUS MARINE SERVICES INC | | | SCAC4 |
| 3511 | PGMX | The Procter & Gamble Manufacturing Co. | added 10/1983; eliminated 4/1988 | | NAKINA |
| 3512 | PGMX | The Procter & Gamble Manufacturing Co. | added 10/83; eliminated 4/88 | | NRHS |
| 3513 | PGMX | RETIRED 10-05-92 ATP (1354) [PROCTER & GAMBLE MFG. CO.] | | | PWRC |
| 3514 | PGMX | Procter and Gamble Manufacturing | | | RSRV |
| 3515 | PGN | Volo Aviation, LLC | Callsign: Pergrine, Name changed to Tailwind Air, LLC. | USA | AVCODES |
| 3516 | PGN | Tailwind Air, LLC | IATA: TQ, Callsign: Pergrine, Name changed from Volo Aviation, LLC. | USA | AVCODES |
| 3517 | PGNE | PARAGON EXPRESS INC | | | SCAC3 |
| 3518 | PGNIEZ | PKS Gniezno | | PL | TRAFFIC |
| 3519 | PGNL | PARAGON LINE INC | | | SCAC4 |
| 3520 | PGNO | PRESTIGE GLASS INTERNATIONAL INCORP | | | SCAC4 |
| 3521 | PGNP | PARAGON PLASTICS INCORPORATED | | | SCAC3 |
| 3522 | PGNP | PADGETT, VERNON C TRANSPORT INC | | | SCAC4 |
| 3523 | PGNS | PARKER, G & SON INC | | | SCAC3 |
| 3524 | PGNT | PARAGON TRANSPORTATION SERVICES INC | | | SCAC4 |
| 3525 | PGNW | PIEDMONT GRADING & WRECKING CO INC | | | SCAC3 |
| 3526 | PGNW | PIEDMONT GRADING & WRECKING | | | SCAC4 |
| 3527 | PGNX | Carolina Power & Light Co. d/b/a Progress Energy Carolinas, Inc. | 7/2005 (not listed) | | NAKINA |
| 3528 | PGNX | CAROLINA POWER & LIGHT CO. d/b/a PROGRESS ENERGY CAROLINAS, INC. | | | PWRC |
| 3529 | PGNX | CAROLINA POWER & LIGHT COMPANY D/B/ | | | SCAC4 |
| 3530 | PGO | Aerolineas Panamericanas de Carga Lda. (Pan Airlines Cargo Colombia) | Callsign: Pan Airlines, | CO | AVCODES |
| 3531 | PGOC | PANGEO CORPORATION | | | SCAC4 |
| 3532 | PGON | PARAGON TRANSPORTATION INC | | | SCAC3 |
| 3533 | PGOR | PARAGON RACING LTD | | | SCAC4 |
| 3534 | PGOS | PANTEGO SHIPPING | | | SCAC3 |
| 3535 | PGOT | PARAGON TRANSPORT INC | | | SCAC3 |
| 3536 | PGOU | FIVE OCEANS LOGISTICS LTD | | HK | BIC |
| 3537 | PGOU | PACIFIC GATES CONTAINER LINES LTD | | | SCAC4 |
| 3538 | PGP | Perm State Air Enterprise | IATA: P9, Callsign: Perm Air, Designator P9* recalled by IATA | RUS | AVCODES |
| 3539 | PGP | Perm Airlines | IATA: P9 | | ICAO1 |
| 3540 | PGPB | POLING, GENE P INC (BROKER DIVISION | | | SCAC4 |
| 3541 | PGPR | PACER TRANSPORTATION SOLUTIONS INC | | | SCAC4 |
| 3542 | PGPT | PAGONE, P TRUCKING INC | | | SCAC3 |
| 3543 | PGPW | PLY GEM PACIFIC WINDOWS | | | SCAC4 |
| 3544 | PGR | Prestige Air Group LLC | Callsign: Prestige Air, | USA | AVCODES |
| 3545 | PGR | Progressive Rail, Inc. | 7/2005; added 10/2005 | | NAKINA |
| 3546 | PGR | PROGRESSIVE RAIL, INC. | | | PWRC |
| 3547 | PGR | PROGRESSIVE RAIL | | | PWRC |
| 3548 | PGR | Progressive Rail | | | RSRV |
| 3549 | PGR | PROGRESSIVE RAIL INC | | | SCAC4 |
| 3550 | PGR | Progressive Rail, Inc. | | USA | TRAFFIC |
| 3551 | PGRA | PRIEST, GARRY TRUCKING LTD | | | SCAC4 |
| 3552 | PGRB | PARADAS GROUP | | | SCAC4 |
| 3553 | PGRC | PLACE, GEORGE C | | | SCAC3 |
| 3554 | PGRC | P G R TRUCKING | | | SCAC4 |
| 3555 | PGRF | PROGRESSIVE FREIGHT CARRIERS INC | | | SCAC3 |
| 3556 | PGRG | PROTEUS GROUP | | | SCAC4 |
| 3557 | PGRH | PAGELS, RICHARD TRUCKING INC | | | SCAC3 |
| 3558 | PGRH | PAGELS, RICHARD TRUCKING INC | | | SCAC4 |
| 3559 | PGRI | PELIXAN GROUP INC, THE | | | SCAC4 |
| 3560 | PGRK | P & G TRUCKING | | | SCAC4 |
| 3561 | PGRL | PEREGRINE LEASING INC | | | SCAC3 |
| 3562 | PGRN | POULIN GRAIN INC | | | SCAC4 |
| 3563 | PGRO | PACIFIC AGRO CO | | | SCAC3 |
| 3564 | PGRO | PINE GROVE JCT LLC | | | SCAC4 |
| 3565 | PGRQ | PROGRAMMED DELIVERY SERVICE | | | SCAC3 |
| 3566 | PGRQ | PENDERGRASS TRANSPORTATION INC | | | SCAC4 |
| 3567 | PGRS | PROGRESS RAIL SERVICES CORPORATION | | | SCAC4 |
| 3568 | PGRV | Pigeon River R.R. Co. | added 1/1986; eliminated 7/1990; 1/1994-7/2005 | | NAKINA |
| 3569 | PGRV | Pigeon River R.R. Co. | added 1/86; eliminated 7/90; 1/94-7/2000 | | NRHS |
| 3570 | PGRV | PIGEON RIVER RAILROAD COMPANY | | | PWRC |
| 3571 | PGRV | Pigeon River Railroad | | | RSRV |
| 3572 | PGRV | PIGEON RIVER RAILROAD COMPANY | | | SCAC3 |
| 3573 | PGRW | PRIEST, G W | | | SCAC3 |
| 3574 | PGRW | PETTIGREW TRANSPORT INC | | | SCAC4 |
| 3575 | PGRX | AmeriGas Propane, L.P. | added 10/1995; eliminated 4/1998; 7/2000-7/2005 (not listed) | | NAKINA |
| 3576 | PGRX | Petrolane Gas Service Ltd. Partnership | added 7/1987; 1/1994; eliminated 10/1995 | | NAKINA |
| 3577 | PGRX | Petrolane Gas Service, Inc. | added 10/1964; 7/1965-1/1980; eliminated 7/1987 | | NAKINA |
| 3578 | PGRX | The Progressive Refrigerator Line (Merchants Despatch, Inc.) | 7/1935 | | NAKINA |
| 3579 | PGRX | Procter & Gamble Refrigerator Line | 7/1930-7/1932 | | NAKINA |
| 3580 | PGRX | Petrolane Gas Service, Inc. | 7/65-1/80; eliminated 7/87 | | NRHS |
| 3581 | PGRX | Petrolane Gas Service Ltd. Partnership | added 7/87; 1/94; eliminated 10/95 | | NRHS |
| 3582 | PGRX | AmeriGas Propane, L.P. | added 10/95; eliminated 4/98; 7/2000 | | NRHS |
| 3583 | PGRX | PROCTER & GAMBLE REFRIGERATOR LINE | | | PWRC |
| 3584 | PGRX | AMERIGAS PROPANE L.P. [PETROLANE GAS SERVICE LP] | | | PWRC |
| 3585 | PGRX | AmeriGas Propane | | | RSRV |
| 3586 | PGRX | PETROLANE GAS SERVICE INC | | | SCAC3 |
| 3587 | PGRX | PETROLANE GAS SERVICE LIMITED PARTN | | | SCAC4 |
| 3588 | PGRY | P G R TRANSPORTATION LLC | | | SCAC4 |
| 3589 | PGS | Tauranga Aero Club (Inc) | Callsign: Pegasus, | NZ | AVCODES |
| 3590 | PGS | Tauranga Aer Club | | | ICAO1 |
| 3591 | PGSB | PEGASUS BROKERAGE INC | | | SCAC4 |
| 3592 | PGSD | PROGRESSIVE PRODUCE COMPANY | | | SCAC4 |
| 3593 | PGSE | PEGASUS EXPRESS INC | | | SCAC3 |
| 3594 | PGSE | PEGASUS ENTERPRISE INC | | | SCAC4 |
| 3595 | PGSF | PEGASUS FREIGHT SYSTEMS LLC | | | SCAC4 |
| 3596 | PGSI | PEGASUS TRANSPORTATION INC | | | SCAC3 |
| 3597 | PGSI | PEGASUS TRANSPORTATION INC | | | SCAC4 |
| 3598 | PGSJ | PACIFIC GRACE SHIPPING LIMITED | | | SCAC4 |
| 3599 | PGSL | PETROLANE GAS SERVICE LIMITED PARTN | | | SCAC3 |
| 3600 | PGSL | P G S LTD | | | SCAC4 |
