| 1 | POV | Meridian, Aviation Enterprise of Special Purpose | Callsign: Air Poltava, Name changed from Poltava Universal Avia | UA | AVCODES |
| 2 | POV | Poltava Universal Avia | Callsign: Air Poltava, Name changed to Meridian, Aviation Enterprise of Special Purpose | UA | AVCODES |
| 3 | POV | Meridian | | | ICAO1 |
| 4 | POV | Pittsburgh & Ohio Valley Ry. Co. | 1/1975-1/1994; eliminated 1/1996; 7/2000-7/2005 | | NAKINA |
| 5 | POV | (P&OV) Pittsburgh & Ohio Valley Ry. Co. | 4/1970 | | NAKINA |
| 6 | POV | Pittsburgh & Ohio Valley Ry. Co. | 1/75-1/94; eliminated 1/96; 7/2000 | | NRHS |
| 7 | POV | (P&OV) Pittsburgh & Ohio Valley Ry. Co. | Apr-70 | | NRHS |
| 8 | POV | CSX TRANSPORTATION [PITTSBURGH & OHIO VALLEY RAILWAY COMPANY] | | | PWRC |
| 9 | POV | Pittsburgh and Ohio Valley Railway | | | RSRV |
| 10 | POVA | Pend Oreille Valley R.R. | added 1/1985; eliminated 7/1986; 1/1994-7/2005 | | NAKINA |
| 11 | POVA | Pend Oreille Valley R.R., Inc. | added 1/1980; 1/1980; eliminated 1/1985 | | NAKINA |
| 12 | POVA | Pend Oreille Valley R.R., Inc. | added 1/80; 1/80; eliminated 1/85 | | NRHS |
| 13 | POVA | Pend Oreille Valley R.R. | added 1/85; eliminated 7/86; 1/94-7/2000 | | NRHS |
| 14 | POVA | PEND OREILLE VALLEY RAILROAD | | | PWRC |
| 15 | POVA | Pend Oreille Valley Railroad | | | RSRV |
| 16 | POVA | PEND OREILLE VALLEY RAILROAD (PORT | | | SCAC3 |
| 17 | POVD | PACIFIC OVERLAND TRADING | | | SCAC3 |
| 18 | POVR | PEND OREILLE VALLEY RAILROAD | | | PWRC |
| 19 | POVR | POVERO, EUGENE | | | SCAC3 |
| 20 | POVS | PACIFIC OVERSEAS FORWARDING INC | | | SCAC4 |
| 21 | POVT | PORT VINCENT TRUCK LEASING INC | | | SCAC3 |
| 22 | POVT | PORT VINCENT TRUCK LEASING INC | | | SCAC4 |
| 23 | POVX | PORT OF VANCOUVER | | | PWRC |
