1 | OPA | Opal Air Pty Ltd. | | AUS | AVCODES |
2 | OPA | Opal Air | | | ICAO1 |
3 | OPAL | OPALOS Y | | | SCAC4 |
4 | OPAT | OIL PATCH CORP | | | SCAC4 |
5 | OPAX | Oxford Paper Co. | added 1/1959; eliminated 10/1959 | | NAKINA |
6 | OPAX | Oxford Paper Co., Inc. | 10/1957; eliminated 1/1959 | | NAKINA |
7 | OPAX | Oxford Paper Co. | added 4/1954; 7/1954 | | NAKINA |
8 | OPAX | Oxford Paper Co. | added 4/54 | | NRHS |
9 | OPAX | Oxford Paper Co., Inc. | 10/57; eliminated 1/59 | | NRHS |
10 | OPAX | Oxford Paper Co. | added 1/59; eliminated 10/59 | | NRHS |
11 | OPAX | OXFORD PAPER CO. | | | PWRC |