| 1 | ECL | Aeronautica Castellana, S.A. | Callsign: Aero Castellana, | E | AVCODES |
| 2 | ECL | Euro City Line | | D | AVCODES |
| 3 | ECL | Aeronautica Castellana | | | ICAO1 |
| 4 | ECL | PGE Górnictwo i Energetyka Konwencjonalna S.A. Oddział Elektrociepłownia Lublin Wrotków | | PL | VKM |
| 5 | ECLA | EUROATLANTIC CONTAINERLINE SA | | | SCAC3 |
| 6 | ECLB | E-CARGOWAY LOGISTICS USA INC | | | SCAC4 |
| 7 | ECLC | ECONO-LINE CONTRACT DELIVERY SERVIC | | | SCAC3 |
| 8 | ECLC | ECONO-LINE CONTRACT DELIVERY SERVIC | | | SCAC4 |
| 9 | ECLD | ELITE COURIER LTD | | | SCAC3 |
| 10 | ECLD | EASTERN CARGO LIMITED | | | SCAC4 |
| 11 | ECLF | ECLIPSE FREIGHT SYSTEMS INC | | | SCAC4 |
| 12 | ECLG | EAGLE COACH LEASING INC | | | SCAC3 |
| 13 | ECLH | EXECUTIVE CLASS | | | SCAC4 |
| 14 | ECLI | ENTERPRISES CLEMENT LAVOIE INC | | | SCAC3 |
| 15 | ECLI | ENTREPRISES CLEMENT LAVOIE INC | | | SCAC4 |
| 16 | ECLJ | ECLIPSE LOGISTICS LLC | | | SCAC4 |
| 17 | ECLK | ELK CREEK INTERNATIONAL | | | SCAC4 |
| 18 | ECLL | ECONOLINE LIMOUSINE | | | SCAC3 |
| 19 | ECLM | EAST COAST LIMOUSINE | | | SCAC3 |
| 20 | ECLM | EAST COAST LOGISTICS LLC | | | SCAC4 |
| 21 | ECLN | ECONO-LINE EXPRESS INC | | | SCAC3 |
| 22 | ECLO | EXECUTIVE COACH LIMOUSINE SERVICE | | | SCAC3 |
| 23 | ECLP | ECLIPSE FREIGHT SYSTEMS | | | SCAC4 |
| 24 | ECLR | EASTERN CAR LINER LTD. | | | SCAC3 |
| 25 | ECLR | EASTERN CAR LINER LTD | | | SCAC4 |
| 26 | ECLS | EAST CAROLINA SHIP AGENCIES INC | | | SCAC3 |
| 27 | ECLS | EXCLUSIVE LLC | | | SCAC4 |
| 28 | ECLU | ECU LINE CANADA, INC. | | | SCAC3 |
| 29 | ECLU | ELLERMAN CITY LINES, LTD | | | SCAC4 |
| 30 | ECLW | EXPRESS CARRIERS LLC | | | SCAC4 |
| 31 | ECLX | Erco Worldwide (USA) Inc. | added 1/2006 | | NAKINA |
| 32 | ECLX | ELM-Central Rail Leasing, LP | 7/2000 (not listed) | | NAKINA |
| 33 | ECLX | ELM-Central Rail Leasing, LP | Jul-00 | | NRHS |
| 34 | ECLX | *ELM-CENTRAL RAIL LEASING, LP | | | PWRC |
| 35 | ECLX | +ERCO WORLDWIDE (USA) INC. | | | PWRC |
| 36 | ECLX | ELM-Central Rail Leasing | | | RSRV |
| 37 | ECLX | ERCO WORLDWIDE (USA) INC | | | SCAC4 |
