| 1 | EN | Air Dolomiti S.p.A. Linee Aeree Regionali Europee | ICAO: DLA, Callsign: Dolomiti, IATA Prefix: 101, Name changed from Air Dolomiti S.p.A. | I | AVCODES |
| 2 | EN | Cal Air International | ICAO: CAI, Callsign: Caljet, Name changed to Novair | GB | AVCODES |
| 3 | EN | Eastern Airways Ltd. | Merged into Genair during 1982 | GB | AVCODES |
| 4 | EN | Genair Ltd. | ICAO: GEN, Callsign: Genair, | GB | AVCODES |
| 5 | EN | Novair | ICAO: NGK, Callsign: Starjet, Ceased operations on 05 May 1990. | GB | AVCODES |
| 6 | EN | Sacchi Air Ferry Enterprises | Callsign: Sacchi, | USA | AVCODES |
| 7 | EN | Lineas Aereas Canarias, SA | ICAO: LCN, Callsign: LCN, Commenced operations in 1985. | E | AVCODES |
| 8 | EN | Canadian Pacific Ry. | added 1/1997; 7/2000-7/2005 | | NAKINA |
| 9 | EN | CP Rail System (Canadian Pacific Ltd.) | added 7/1994; eliminated 1/1997 | | NAKINA |
| 10 | EN | Esquimalt and Nanaimo Ry. Co. | added 10/1977; 1/1980-1/1994; eliminated 7/1994 | | NAKINA |
| 11 | EN | Esquimalt and Nanaimo Ry. Co. | 1/80-1/94; eliminated 7/94 | | NRHS |
| 12 | EN | CP Rail System (Canadian Pacific Ltd.) | added 7/94; eliminated 1/97 | | NRHS |
| 13 | EN | Canadian Pacific Ry. | added 1/97; 7/2000 | | NRHS |
| 14 | EN | CP RAIL [ESQUIMALT & NANAIMO RY. CO.] | | | PWRC |
| 15 | EN | E and N Railway (Canadian Pacific Railway) | | | RSRV |
| 16 | ENA | Espana, Direccion General De Aviacion Civil Y Telecomunicaciones | IATA: NA, Callsign: ENA, Designator NA recalled by IATA | E | AVCODES |
| 17 | ENA | Direccion General de Aviacion Civil y Telecomunica | | | ICAO1 |
| 18 | ENAA | EXPRESS NORTH AMERICA COURIERS | | | SCAC4 |
| 19 | ENAC | ENDERLIN, AMOS CONTRACTING | | | SCAC3 |
| 20 | ENAFER | Empresa Nacional de Ferrocarriles del Peru | | PE | TRAFFIC |
| 21 | ENAG | Erms Neckar Bahn AG | Bad Urach | D | privat-bahn.de |
| 22 | ENAG | Erms-Neckar-Bahn AG | | DE | VKM |
| 23 | ENAK | ENNS, A | | | SCAC4 |
| 24 | ENAO | ENFIELD BONDED WAREHOUSE | | | SCAC3 |
| 25 | ENAO | ENFIELD BONDED WAREHOUSE | | | SCAC4 |
| 26 | ENAQ | E & A TRUCKING | | | SCAC3 |
| 27 | ENAQ | ENERGY SHIPPING S P A OF | | | SCAC4 |
| 28 | ENAR | ENA COURIERS INC | | | SCAC4 |
| 29 | ENAT | ENA COURIERS (CENTRAL TEXAS) INC | | | SCAC3 |
| 30 | ENAT | Eastern National | | GB | TRAFFIC |
| 31 | ENAU | MAERSK A/S | | DK | BIC |
| 32 | ENAU | EMPRESA DE NAVEGACAO ALIANCA | | | SCAC3 |
| 33 | ENAU | HAMBURG SUED | | | SCAC4 |
| 34 | ENBF | ENGLE BROS FARMS | | | SCAC3 |
| 35 | ENBI | ELDREDGE & BOURNE MOVING & STORAGE | | | SCAC3 |
| 36 | ENBI | ENBRIDGE GAS DISTRIBUTION INC | | | SCAC4 |
| 37 | ENBK | E & B TRUCKING INC | | | SCAC3 |
| 38 | ENBK | E & B TRUCKING INC | | | SCAC4 |
| 39 | ENBO | ENTERPRISE TRANSPORTATION | | | SCAC3 |
| 40 | ENBQ | E & B CORP | | | SCAC3 |
| 41 | ENBR | ENNIS CORP | | | SCAC3 |
| 42 | ENBU | EURONORDIC BELGIUM NV | | | SCAC4 |
| 43 | ENC | Endecots, S.A. | Callsign: Endecots, | EC | AVCODES |
| 44 | ENC | Endecots | | | ICAO1 |
| 45 | ENCA | ENFLO CANADA LTD | | | SCAC4 |
| 46 | ENCC | E & T CARTAGE CORPORATION | | | SCAC3 |
| 47 | ENCC | EB INTERNACIONAL SA DE CV | | | SCAC4 |
| 48 | ENCH | ENGLAND CHARTER & TOURS INC | | | SCAC3 |
| 49 | ENCJ | ENCON | | | SCAC4 |
| 50 | ENCK | ENACT LLC | | | SCAC4 |
| 51 | ENCL | EASTERN CONTAINER LINE | | | SCAC4 |
| 52 | ENCM | ENERCHEM MARITIME INC. | | | SCAC3 |
| 53 | ENCN | ENCON INC | | | SCAC3 |
| 54 | ENCN | EMPRESA NAVIERA ELCANO SA | | | SCAC4 |
| 55 | ENCO | ENCO MANUFACTURING CO | | | SCAC3 |
| 56 | ENCP | E & C TRANSPORT | | | SCAC3 |
| 57 | ENCQ | ENCORE TRANSPORTATION LLC | | | SCAC4 |
| 58 | ENCR | ENCORE TRANSPORT INC | | | SCAC3 |
| 59 | ENCS | E & C STATE LINERS INC | | | SCAC3 |
| 60 | ENCS | ELDON FREIGHTWAYS INC | | | SCAC4 |
| 61 | ENCT | ENCINAL TRUCKING INC | | | SCAC3 |
| 62 | ENCT | ENCINA TRANSPORT INC | | | SCAC4 |
| 63 | ENCV | ENCARGO LOGISTICS | | | SCAC4 |
| 64 | ENCW | ENVIRO-CHEM WASTE MANAGEMENT SERVIC | | | SCAC3 |
| 65 | ENCX | En Erco International, Inc. | added 7/1971; 1/1975-1/1980; eliminated 5/1983; 1/1994 (not listed) | | NAKINA |
| 66 | ENCX | En Erco International, Inc. | 1/75-1/80; eliminated 5/83; 1/94 | | NRHS |
| 67 | ENCX | EN ERCO INTERNATIONAL INC | | | PWRC |
| 68 | ENCX | EN ERCO International | | | RSRV |
| 69 | ENCY | ENTERPRISE COMPANY | | | SCAC4 |
| 70 | END | Arrendadora y Transortadora Aerea, S.A. de C.V. | Callsign: Arrendadora, | MEX | AVCODES |
| 71 | END | Arrendoora y Transportadora Aerea | | | ICAO1 |
| 72 | END | Überlandstraßenbahn Esslingen-Nellingen-Denkendorf | City: Esslingen | D | TRAFFIC |
| 73 | ENDA | ENGEL, DONALD A | | | SCAC3 |
| 74 | ENDC | ENDICOTT TRUCKING | | | SCAC3 |
| 75 | ENDC | ENDURAPLAS INCORPORATED | | | SCAC4 |
| 76 | ENDE | E N E DELOS LIMITED | | | SCAC3 |
| 77 | ENDG | E & D TRUCKING CO | | | SCAC3 |
| 78 | ENDI | ENID TRANSPORT INC | | | SCAC3 |
| 79 | ENDK | E & D TRUCKING INC | | | SCAC3 |
| 80 | ENDL | E & D LEASING | | | SCAC3 |
| 81 | ENDL | ENDEAVOR BUS LINES | | | SCAC4 |
| 82 | ENDM | E & D MOVERS INC | | | SCAC3 |
| 83 | ENDN | ENDICOTT, TOM & SON TRUCKING | | | SCAC3 |
| 84 | ENDN | ENDEAVOUR ENTERPRISES | | | SCAC4 |
| 85 | ENDO | ENUMCLAW AUTO FREIGHT CO | | | SCAC3 |
| 86 | ENDP | ENDURO PIPELINE SERVICE INC | | | SCAC4 |
| 87 | ENDQ | ENDICOTT, D L | | | SCAC3 |
| 88 | ENDR | ENDRIES EXPRESS INC | | | SCAC4 |
| 89 | ENDS | E N D SERVICE INC | | | SCAC3 |
| 90 | ENDT | ENDICOTT TRUCKING INC | | | SCAC3 |
| 91 | ENDT | ENDOT INDUSTRIES INC | | | SCAC4 |
| 92 | ENDU | ENDEL GDF SUEZ | | | SCAC4 |
| 93 | ENDV | ENDEAVORS INC | | | SCAC3 |
| 94 | ENDX | GATX de Mexico Inc. | added 7/2007 | | NAKINA |
| 95 | ENDX | GATX de Mexico SA de CV | added 1/2003; 7/2005; eliminated 7/2007 | | NAKINA |
| 96 | ENDX | Joseph Transportation de Mexico S.A. de C.V. | added 4/2000; 7/2000; eliminated 1/2003 | | NAKINA |
| 97 | ENDX | FerroDJJ S.A. de C.V. | eliminated 4/2000 | | NAKINA |
| 98 | ENDX | Ferroquadrum, S.A. de C.V. | added 1/1994; 1/1994 | | NAKINA |
| 99 | ENDX | Endasa, S.A. de C.V. | added 7/1986; eliminated 1/1994 | | NAKINA |
| 100 | ENDX | Endasa, S.A. de C.V. | added 7/86; eliminated 1/94 | | NRHS |
