| 1 | DKPS | DESK TOP SERVICES | | | SCAC4 |
| 2 | DKPX | Duke Power Co. LLC d/b/a Duke Energy Carolinas LLC | added 4/2009 | | NAKINA |
| 3 | DKPX | Duke Power Co. (scale test cars) | 1/1994-7/2005 (not listed) | | NAKINA |
| 4 | DKPX | Duke Power Co. (scale test cars) | 1/94-7/2000 | | NRHS |
| 5 | DKPX | DUKE POWER CO. (DUKE ENERGY CAROLINAS, LLC) | | | PWRC |
| 6 | DKPX | Duke Power | | | RSRV |
| 7 | DKPX | DUKE ENERGY CAROLINAS LLC | | | SCAC4 |
| 8 | DKPZ | Doprávný Komunálny Podnik Zilina | | SK | TRAFFIC |
