| 901 | ECMM | ECONOMY MOVERS | | | SCAC3 |
| 902 | ECMM | ECONOMY MOVERS | | | SCAC4 |
| 903 | ECMN | EAU CLAIRE MOVING AND STORAGE INC | | | SCAC4 |
| 904 | ECMO | ECON-O-MOVER | | | SCAC3 |
| 905 | ECMP | ELLIS COUNTRY MEAT & PRODUCE | | | SCAC3 |
| 906 | ECMP | EL COMPA TRUCKING | | | SCAC4 |
| 907 | ECMS | EC MOVING & STORAGE INC | | | SCAC4 |
| 908 | ECMT | E.C.M. TRANSPORT, INC | | | SCAC3 |
| 909 | ECMT | E C M TRANSPORT LLC | | | SCAC4 |
| 910 | ECMU | CMA-CGM | | F | BIC |
| 911 | ECMU | COMPAGNIE MARITIME D'AFFRETEMENT | | | SCAC3 |
| 912 | ECMU | CMA-CGM | | | SCAC4 |
| 913 | ECMV | ECONOMY MOVING AND STORAGE | | | SCAC3 |
| 914 | ECN | Euro Continental Air, S.L. | Callsign: Euro Continental, | E | AVCODES |
| 915 | ECN | Euro Continental AIE | | | ICAO1 |
| 916 | ECN | EL CAMINO CHARTER LINES INC | | | SCAC4 |
| 917 | ECNA | EVANDROS COMPANIA NAVIERA S A | | | SCAC4 |
| 918 | ECNC | ECONOCARIBE CONSOLIDATORS INC | | | SCAC3 |
| 919 | ECNC | ECONOCARIBE CONSOLIDATORS INC | | | SCAC4 |
| 920 | ECNF | ECONFLEET TRANSPORTATION | | | SCAC3 |
| 921 | ECNH | ENVIRONMENT CANADA NATIONAL HYDROLO | | | SCAC4 |
| 922 | ECNL | ENLACE INTERNACIONAL Q | | | SCAC4 |
| 923 | ECNM | EUROCEANICA (UK) LIMITED | | | SCAC4 |
| 924 | ECNO | ECONOMY TRANSPORTATION CO INC | | | SCAC3 |
| 925 | ECNO | ECI TRANSPORT INC | | | SCAC4 |
| 926 | ECNR | ECOTEMP INTERNATIONAL INC | | | SCAC4 |
| 927 | ECNS | ECONOMY SERVICE STATIONS INC | | | SCAC3 |
| 928 | ECNS | EATON CONTROLS S DE R L DE C V | | | SCAC4 |
| 929 | ECNU | ECONSHIP MARINE PTE LTD | | SGP | BIC |
| 930 | ECNU | ECONOCARIBE | | | SCAC3 |
| 931 | ECNU | EMPRESA CONTINENTAL DE NAVEGACAO LD | | | SCAC4 |
| 932 | ECNV | ESHLEY COMPANIA NAVIERA SA | | | SCAC3 |
| 933 | ECNV | ESHLEY COMPANIA NAVIERA SA | | | SCAC4 |
| 934 | ECNW | EXECUTIVE COURIER NETWORK | | | SCAC3 |
| 935 | ECO | Aero Sierra Eco, S.A. de C.V. | Callsign: Aeroeco, | MEX | AVCODES |
| 936 | ECO | {`Eastern Australian Airlines (East Coast (Commuter) Airlines Ltd.`};ZIPCODE= | IATA: TN, Subsidiary of Qantas | AUS | AVCODES |
| 937 | ECO | Linea Aerea Eco Jet S.A. | IATA: 8J, | BOL | AVCODES |
| 938 | ECO | ECORAIL Inc. | 7/2000-7/2005 | | NAKINA |
| 939 | ECO | ECORAIL Inc. | Jul-00 | | NRHS |
| 940 | ECO | ECORAIL INCORPORATED | | | PWRC |
| 941 | ECO | Ecorail | | | RSRV |
| 942 | ECO | Eco Rail | | FAN | TRAFFIC |
| 943 | ECOC | ECONOMY HOUSING COMPANY INC | | | SCAC3 |
| 944 | ECOD | ECONO DELIVERY | | | SCAC3 |
| 945 | ECOD | ECO MOVING & STORAGE INC | | | SCAC4 |
| 946 | ECOD | ECODIESEL S.A. | | RO | VKM |
| 947 | ECOE | ECONEXPRESS INC | | | SCAC3 |
| 948 | ECOF | ECOFF TRUCKING INC | | | SCAC3 |
| 949 | ECOG | ECOGRANULE | | | SCAC4 |
| 950 | ECOI | ECO INC | | | SCAC3 |
| 951 | ECOI | ECO INC | | | SCAC4 |
| 952 | ECOJ | ELBURN COOP | | | SCAC4 |
| 953 | ECOM | ECONOMY COAL CO | | | SCAC3 |
| 954 | ECOM | ELANN.COM INC | | | SCAC4 |
| 955 | ECON | EASTERN CONTAINER LIMITED | | | PWRC |
| 956 | ECON | ECONOLINE TRANSPORT LTD | | | SCAC3 |
| 957 | ECOO | ECONO OIL COMPANY | | | SCAC4 |
| 958 | ECOP | E-CON PARCEL EXPRESS INC | | | SCAC3 |
| 959 | ECOQ | ECONOMY TRANSPORT INC | | | SCAC3 |
| 960 | ECOQ | ECO TRUCKING INC | | | SCAC4 |
| 961 | ECOR | ENCORE TRUCKING INC | | | SCAC3 |
| 962 | ECOS | EAST COAST CARTAGE INC | | | SCAC3 |
| 963 | ECOS | ECO TRANSPORTES INTERNACIONALES S A | | | SCAC4 |
| 964 | ECOSA | Energetyka Cieplna Opolszczyzny S.A. | | PL | VKM |
| 965 | ECOT | ECHO TRUCKING COMPANY | | | SCAC3 |
| 966 | ECOT | ECHO TRUCKING COMPANY | | | SCAC4 |
| 967 | ECOU | ECO.GE.M.M.A | | I | BIC |
| 968 | ECOU | ECOS LTD | | | SCAC4 |
| 969 | ECOV | ECONOMY MOVING & STORAGE COMPANY | | | SCAC3 |
| 970 | ECOW | ECOWASTE TRANSPORT INC | | | SCAC3 |
| 971 | ECOW | ECOWAY LLC | | | SCAC4 |
| 972 | ECOX | Eco East | 1/1994 (not listed); added 1/1997; eliminated 4/1997; 7/2000-7/2005 (not listed) | | NAKINA |
| 973 | ECOX | Eagle Cotton Oil Co. | 7/1935-10/1966; eliminated 10/1968 | | NAKINA |
| 974 | ECOX | Eagle Cotton Oil Co. | 4/38-10/66; eliminated 10/68 | | NRHS |
| 975 | ECOX | Eco East | 1/94; added 1/97; eliminated 4/97; 7/2000 | | NRHS |
| 976 | ECOX | *EAGLE COTTON OIL CO. | | | PWRC |
| 977 | ECOX | +ECO EAST | | | PWRC |
| 978 | ECOX | Eco East | | | RSRV |
| 979 | ECOX | EAGLE COTTON OIL CO | | | SCAC3 |
| 980 | ECOX | ECO EAST | | | SCAC4 |
| 981 | ECOZ | ECORAIL INCORPORATED (ECOLAB) | | | PWRC |
| 982 | ECOZ | Ecorail | | | RSRV |
| 983 | ECPC | EAST COAST PETROLEUM CORP | | | SCAC4 |
| 984 | ECPI | ECLIPSE INC | | | SCAC3 |
| 985 | ECPL | ENGINEERED CUSTOM PLASTICS CORPORAT | | | SCAC3 |
| 986 | ECPM | EXCLUSIVE PIANO MOVERS INC | | | SCAC3 |
| 987 | ECPN | ECLIPSE TRANSERVICES CORPORATION | | | SCAC4 |
| 988 | ECPP | EXCEL PETROLEUM TRANSPORT INC | | | SCAC4 |
| 989 | ECPR | EAST COAST PETROLEUM INC | | | SCAC4 |
| 990 | ECPS | ECLIPSE-AUSTIN STORAGE & TRANSFER C | | | SCAC3 |
| 991 | ECPS | ECLIPSE TRANSPORT LTD | | | SCAC4 |
| 992 | ECPT | ELTRA CORPORATION PRIVATE TRUCK FLE | | | SCAC3 |
| 993 | ECPT | EUROCOPTER CANADA LIMITED | | | SCAC4 |
| 994 | ECPU | ECLIPS PTY LTD | | AUS | BIC |
| 995 | ECPW | EAU CLAIR PASSENGER SERVICE | | | SCAC3 |
| 996 | ECPX | E.C.C. America Inc. | added 10/1988; 1/1994-7/2000; eliminated 4/2002 | | NAKINA |
| 997 | ECPX | Ethyl Corp. | added 4/1965; 7/1965-4/1970; eliminated 7/1970 | | NAKINA |
| 998 | ECPX | The Equity Co-Operative Packing Co. | 8/1920 | | NAKINA |
| 999 | ECPX | Ethyl Corp. | added 4/65; 7/65-4/70; eliminated 7/70 | | NRHS |
| 1000 | ECPX | E.C.C. America Inc. | added 10/88; 1/94-7/2000 | | NRHS |
