| 7101 | POTJ | POLLARD TRANSPORTATION INC | | | SCAC3 |
| 7102 | POTK | POOLE TRUCK LINE INC | | | SCAC3 |
| 7103 | POTK | PIONEER OILFIELD TRUCKING INC | | | SCAC4 |
| 7104 | POTM | POWER TRANSPORTATION CORP | | | SCAC3 |
| 7105 | POTM | PONTOS E N E | | | SCAC4 |
| 7106 | POTM | Potteries Motor Traction | City: Stoke-on-Trent | GB | TRAFFIC |
| 7107 | POTN | POTTER, FRANK TRUCKING CO | | | SCAC3 |
| 7108 | POTO | POTTS TRUCKING CO | | | SCAC3 |
| 7109 | POTO | POTOSINOS MENSAJERIA Y PAQUETERIA S | | | SCAC4 |
| 7110 | POTP | POPE TRANSPORT INC | | | SCAC4 |
| 7111 | POTQ | POST TRANSFER | | | SCAC3 |
| 7112 | POTQ | PRONTO TRUCKING LLC | | | SCAC4 |
| 7113 | POTR | POTIGIAN TRANSFER | | | SCAC3 |
| 7114 | POTR | POOLE TRUCKING | | | SCAC4 |
| 7115 | POTT | POTTER'S EXPRESS, INC | | | SCAC3 |
| 7116 | POTT | POTTERY AND OTHER | | | SCAC4 |
| 7117 | POTU | POLYTRA S.A. | | | SCAC3 |
| 7118 | POTX | General American Marks Co. | added 1/1998; 7/2000-7/2005 | | NAKINA |
| 7119 | POTX | General American Transportation Corp. | added 4/1990; 1/1994; eliminated 1/1998 | | NAKINA |
| 7120 | POTX | Suburban Propane—Division of Quantum Chemical Corp. | added 7/1988; eliminated 4/1990 | | NAKINA |
| 7121 | POTX | Suburban Propane Gas Corp. | added 1/1986; eliminated 7/1988 | | NAKINA |
| 7122 | POTX | Pargas, Inc. | added 1/1968; 4/1970-1/1980; eliminated 1/1986 | | NAKINA |
| 7123 | POTX | Pargas Tank Cars, Inc. | added 10/1965; 10/1966; eliminated 1/1968 | | NAKINA |
| 7124 | POTX | Pargas Tank Cars, Inc. | added 10/65; 10/66; eliminated 1/68 | | NRHS |
| 7125 | POTX | Pargas, Inc. | added 1/68; 4/70-1/80; eliminated 1/86 | | NRHS |
| 7126 | POTX | Suburban Propane Gas Corp. | added 1/86; eliminated 7/88 | | NRHS |
| 7127 | POTX | Suburban Propane--Division of Quantum Chemical Corp. | added 7/88; eliminated 4/90 | | NRHS |
| 7128 | POTX | General American Transportation Corp. | added 4/90; 1/94; eliminated 1/98 | | NRHS |
| 7129 | POTX | General American Marks Co. | added 1/98; 7/2000 | | NRHS |
| 7130 | POTX | *SUBURBAN PROPANE GAS CO., DIV. QUANTUM CHEMICAL CORP. [PARGAS, INC.] | | | PWRC |
| 7131 | POTX | +GENERAL AMERICAN MARKS CO. [GENERAL AMERICAN TRANSPORTATION CORP.] | | | PWRC |
| 7132 | POTX | General American Marks (GATX Corporation) | | | RSRV |
| 7133 | POTX | PARGAS TANK CARS INC (SUBURBAN PROP | | | SCAC3 |
| 7134 | POTX | PCS SALES USA INC | | | SCAC4 |
| 7135 | POTZ | POPE & TALBOT | | | PWRC |
| 7136 | POUD | POUND & POUND TRUCKING | | | SCAC3 |
| 7137 | POUE | POULTER TRUCKING | | | SCAC3 |
| 7138 | POUI | PRO RESOURCES I LLC | | | SCAC4 |
| 7139 | POUL | POE UNLIMITED INC | | | SCAC3 |
| 7140 | POUL | POE UNLIMITED INC | | | SCAC4 |
| 7141 | POUM | PROUD MARY TRUCKING INC | | | SCAC3 |
| 7142 | POUN | POULIN TRUCKING INC | | | SCAC3 |
| 7143 | POUN | POULIN, ROBERT B | | | SCAC4 |
| 7144 | POUP | POULOS, PETER J & SONS INC | | | SCAC3 |
| 7145 | POUP | POULIN, PIERRE | | | SCAC4 |
| 7146 | POUT | PROUTY TRUCKING INC | | | SCAC3 |
| 7147 | POUU | PROCONTAINER B.V | | | SCAC4 |
| 7148 | POV | Meridian, Aviation Enterprise of Special Purpose | Callsign: Air Poltava, Name changed from Poltava Universal Avia | UA | AVCODES |
| 7149 | POV | Poltava Universal Avia | Callsign: Air Poltava, Name changed to Meridian, Aviation Enterprise of Special Purpose | UA | AVCODES |
| 7150 | POV | Meridian | | | ICAO1 |
| 7151 | POV | Pittsburgh & Ohio Valley Ry. Co. | 1/1975-1/1994; eliminated 1/1996; 7/2000-7/2005 | | NAKINA |
| 7152 | POV | (P&OV) Pittsburgh & Ohio Valley Ry. Co. | 4/1970 | | NAKINA |
| 7153 | POV | Pittsburgh & Ohio Valley Ry. Co. | 1/75-1/94; eliminated 1/96; 7/2000 | | NRHS |
| 7154 | POV | (P&OV) Pittsburgh & Ohio Valley Ry. Co. | Apr-70 | | NRHS |
| 7155 | POV | CSX TRANSPORTATION [PITTSBURGH & OHIO VALLEY RAILWAY COMPANY] | | | PWRC |
| 7156 | POV | Pittsburgh and Ohio Valley Railway | | | RSRV |
| 7157 | POVA | Pend Oreille Valley R.R. | added 1/1985; eliminated 7/1986; 1/1994-7/2005 | | NAKINA |
| 7158 | POVA | Pend Oreille Valley R.R., Inc. | added 1/1980; 1/1980; eliminated 1/1985 | | NAKINA |
| 7159 | POVA | Pend Oreille Valley R.R., Inc. | added 1/80; 1/80; eliminated 1/85 | | NRHS |
| 7160 | POVA | Pend Oreille Valley R.R. | added 1/85; eliminated 7/86; 1/94-7/2000 | | NRHS |
| 7161 | POVA | PEND OREILLE VALLEY RAILROAD | | | PWRC |
| 7162 | POVA | Pend Oreille Valley Railroad | | | RSRV |
| 7163 | POVA | PEND OREILLE VALLEY RAILROAD (PORT | | | SCAC3 |
| 7164 | POVD | PACIFIC OVERLAND TRADING | | | SCAC3 |
| 7165 | POVR | PEND OREILLE VALLEY RAILROAD | | | PWRC |
| 7166 | POVR | POVERO, EUGENE | | | SCAC3 |
| 7167 | POVS | PACIFIC OVERSEAS FORWARDING INC | | | SCAC4 |
| 7168 | POVT | PORT VINCENT TRUCK LEASING INC | | | SCAC3 |
| 7169 | POVT | PORT VINCENT TRUCK LEASING INC | | | SCAC4 |
| 7170 | POVX | PORT OF VANCOUVER | | | PWRC |
| 7171 | POW | Hagondale Limited | Callsign: Airnet, | GB | AVCODES |
| 7172 | POW | Hagondale Limited | | | ICAO1 |
| 7173 | POW | PORT OF WILMINGTON | | | PWRC |
| 7174 | POWB | POWER & LIGHT TRANSPORTATION | | | SCAC4 |
| 7175 | POWC | POWELLCO INC | | | SCAC3 |
| 7176 | POWD | POWERS, D J COMPANY INC | | | SCAC3 |
| 7177 | POWD | POWERS, D J COMPANY INC | | | SCAC4 |
| 7178 | POWE | POWELL BROS TRUCK LINES, INC | | | SCAC3 |
| 7179 | POWER | POWER Rail GmbH | | DE | VKM |
| 7180 | POWF | POWER FREIGHT SYSTEMS INC | | | SCAC3 |
| 7181 | POWG | POTT, WM & SON INC | | | SCAC3 |
| 7182 | POWH | POWERHOUSE MOVING LLC | | | SCAC4 |
| 7183 | POWI | POWERS MOVING & STG INC | | | SCAC3 |
| 7184 | POWJ | PHANTOM OF WHEAT RIDGE LLC | | | SCAC4 |
| 7185 | POWK | POWICK, RON TRUCKING LLC | | | SCAC4 |
| 7186 | POWL | POWELL TRANSPORTATION CO INC | | | SCAC4 |
| 7187 | POWN | POWELL, HERMAN & SONS INC | | | SCAC3 |
| 7188 | POWN | POWELL RELOCATION GROUP | | | SCAC4 |
| 7189 | POWO | POLLARD WINDOWS INC | | | SCAC4 |
| 7190 | POWP | POWELL, E L & SONS TRUCKING CO, INC | | | SCAC3 |
| 7191 | POWQ | PORT TERMINAL AND WHSE CO INC | | | SCAC3 |
| 7192 | POWR | POWERS, RON TRUCKING | | | SCAC3 |
| 7193 | POWR | POWER CARTAGE INC | | | SCAC4 |
| 7194 | POWS | POWELL TRUCKING OF SEDGWICK LLC | | | SCAC4 |
| 7195 | POWT | POWELL TRUCK LINE | | | SCAC3 |
| 7196 | POWV | POWER VAC INC | | | SCAC4 |
| 7197 | POWW | POWELL, W & SONS, INC | | | SCAC3 |
| 7198 | POWW | POWERFUL LOGISTIC INC | | | SCAC4 |
| 7199 | POWX | Vinings Industries, Inc. | 7/2005 (not listed) | | NAKINA |
| 7200 | POWX | Power Silicates, Inc. | added 7/1988; 1/1994; eliminated 1/1998; 7/2000 (not listed) | | NAKINA |
