| 1 | WWP | La Nueva Aerolinea, S.A. t/a wingo | IATA: WH, Callsign: Wingo Panama, | PA | AVCODES |
| 2 | WWPC | WWI TRANSPORTATION INC | | | SCAC4 |
| 3 | WWPR | WEST COUNTRY PRODUCTS INC | | | SCAC4 |
| 4 | WWPX | W. & W. Pickle & Canning Co. | 7/1935-7/1954; eliminated 4/1957 | | NAKINA |
| 5 | WWPX | W. & W. Pickle Co. | added 4/1957; 10/1957-4/1961; eliminated 1/1963 | | NAKINA |
| 6 | WWPX | Whitfield Pickle Co. | added 1/1963; eliminated 7/1965 | | NAKINA |
| 7 | WWPX | Willimantic Waste Paper Co. | added 1/2004; 7/2005; eliminated 4/2007 | | NAKINA |
| 8 | WWPX | W. & W. Pickle & Canning Co. | 4/38-1/52; eliminated 4/57 | | NRHS |
| 9 | WWPX | W. & W. Pickle Co. | added 4/57; 10/57-4/61 | | NRHS |
| 10 | WWPX | Whitfield Pickle Co. | eliminated 7/65 | | NRHS |
| 11 | WWPX | *WHITFIELD PICKLE CO. [W. & W. PICKLE CO.] | | | PWRC |
| 12 | WWPX | +WILLIMANTIC WASTE PAPER, INC. | | | PWRC |
| 13 | WWPX | Willimantic Waste Paper | | | RSRV |
| 14 | WWPX | WILLIMANTIC WASTE PAPER COMPANY INC | | | SCAC4 |
