| 1 | WAK | Alaska Juneau Aeronautics Inc d/b/a Wings Of Alaska | IATA: K5, Callsign: Wings Alaska, Name changed to SeaPort Airlines, Inc. dba Wings of Alaska | USA | AVCODES |
| 2 | WAK | SeaPort Airlines, Inc. dba Wings of Alaska | IATA: K5, Callsign: Wings Alaska, Name changed from Alaska Juneau Aeronautics Inc d/b/a Wings Of Alaska. Acquired by SeaPort Airlines in 2008 | USA | AVCODES |
| 3 | WAK | Fjord Flying Services dba Wings of Alaska | Callsign: Wings Alaska, Name changed from SeaPort Airlines, Inc. dba Wings of Alaska. Acquired from SeaPort Airlines in 2015. | USA | AVCODES |
| 4 | WAK | Wings of Alaska | IATA: K5 | | ICAO1 |
| 5 | WAK | Wakayama Electric Railway | | J | TRAFFIC |
| 6 | WAKAS | Wakasugi Kanko Bus Co. | | J | TRAFFIC |
| 7 | WAKJ | WALKER, JACK OIL CO INC | | | SCAC4 |
| 8 | WAKS | WANNAMAKERS, KEMPTON & SOUTHERN | | | PWRC |
| 9 | WAKS | Wakasa Railway | | J | TRAFFIC |
| 10 | WAKX | Wake Partnership | added 4/1993; 1/1994-7/2005; eliminated 7/2008; eliminated 10/2008 | | NAKINA |
| 11 | WAKX | Wake Partnership | added 4/93; 1/94-7/2000 | | NRHS |
| 12 | WAKX | WAKE PARTNERSHIP | | | PWRC |
| 13 | WAKX | Wake Partnership | | | RSRV |