| 1 | KPR | Kapa Air Ltd. | Callsign: Air Kapa, | GR | AVCODES |
| 2 | KPR | Kelowna Pacific Ry. Ltd. | 7/2005 | | NAKINA |
| 3 | KPR | KELOWNA PACIFIC RAILWAY, LTD. | | | PWRC |
| 4 | KPR | Kelowna Pacific Railway | | | RSRV |
| 5 | KPR | KELOWNA PACIFIC RAILWAY LTD | | | SCAC4 |
| 6 | KPR | Kelowna Pacific Railway, Ltd. | | USA | TRAFFIC |
| 7 | KPRC | K-PAX RACING LLC | | | SCAC4 |
| 8 | KPRI | K P R INC | | | SCAC4 |
| 9 | KPRL | K PAX RACING LLC | | | SCAC4 |
| 10 | KPRM | KENILWORTH/PARKSIDE RESIDENT MANAGE | | | SCAC3 |
| 11 | KPRR | KODAK PARK RAILROAD | | | PWRC |
| 12 | KPRR | Kodak Park Railroad | | | RSRV |
| 13 | KPRX | Western Light & Telephone Co., Inc. | 1/1952-7/1954; 10/1957-4/1961 (not listed) | | NAKINA |
| 14 | KPRX | Kansas Power Co., Division of Western Light & Telephone Co., Inc. | 4/1947-1/1950 | | NAKINA |
| 15 | KPRX | Kansas Power Co. | 1/1945-1/1946 | | NAKINA |
| 16 | KPRX | Crystal Petroleum & Refining Co. | 7/1923 | | NAKINA |
| 17 | KPRX | Western Light & Telephone Co., Inc. | 1/52-4/61 | | NRHS |
| 18 | KPRX | *CRYSTAL PETROLEUM & REFINING CO. | | | PWRC |
| 19 | KPRX | *WESTERN LIGHT & TELEPHONE CO., INC. [KANSAS POWER CO.] | | | PWRC |
