| 1 | PHC | Petroleum Helicopters de Colombia, S.A. | Callsign: Helicopters, Subsidary of Petroleum Helicopters, Inc. | CO | AVCODES |
| 2 | PHC | Petroleum Helicopters de Colombia | | | ICAO1 |
| 3 | PHC | PETROCART SA | | RO | VKM |
| 4 | PHCA | PANHANDLE COOPERATIVE ASSOCIATION | | | SCAC4 |
| 5 | PHCC | PANHANDLE CARTAGE COMPANY INCORPORA | | | SCAC4 |
| 6 | PHCH | P & H CHARTER | | | SCAC3 |
| 7 | PHCH | PHOTECH ENVIRONMENTAL SOLUTIONS INC | | | SCAC4 |
| 8 | PHCL | PHOENIX COURIER LTD | | | SCAC3 |
| 9 | PHCM | PATRIOT HAULING CO | | | SCAC4 |
| 10 | PHCO | PHILADELPHIA COKE | | | PWRC |
| 11 | PHCO | PHONECO | | | SCAC3 |
| 12 | PHCO | PACHECO, CARMEN TRANSPORTATION LLC | | | SCAC4 |
| 13 | PHCP | PHELPS, C P INC | | | SCAC4 |
| 14 | PHCQ | PHILLIPS TRUCKING COMPANY | | | SCAC3 |
| 15 | PHCR | PORT COLBORNE HARBOUR RAILWAY | | | PWRC |
| 16 | PHCR | Port Colborne Harbour Railway | | | RSRV |
| 17 | PHCT | PHILLIPS, CHARLES TRUCKING INC | | | SCAC3 |
| 18 | PHCU | SC INDUSTRIAL GAS MANUFACTURER LTD | | | SCAC4 |
| 19 | PHCX | Harnischfeger Corp. | 7/1965 (not listed); added 4/1966; 10/1966; eliminated 7/1969 | | NAKINA |
| 20 | PHCX | Harnischfeger Corp. | added 4/66; 7/65-10/66; eliminated 7/69 | | NRHS |
| 21 | PHCX | HARNISCHFEGER CORP. | | | PWRC |
