| 5001 | ERR | European Rail Rent | | D | TRAFFIC |
| 5002 | ERR | ERR European Rail Rent GmbH | | DE | VKM |
| 5003 | ERRA | ERRAND EXPRESS | | | SCAC4 |
| 5004 | ERRB | ERRAND BOY, INC | | | SCAC3 |
| 5005 | ERRB | EASTERN RED RUBY FOOD PRIVATE LTD | | | SCAC4 |
| 5006 | ERRM | ENTREPRISES R R MONDOR INC | | | SCAC3 |
| 5007 | ERRP | EAGLE ROAD RAIL TRANSPORTATION SYST | | | SCAC4 |
| 5008 | ERRT | EDWARD, ROY R TRUCKING INC | | | SCAC3 |
| 5009 | ERRT | ERRIA A/S | | | SCAC4 |
| 5010 | ERS | Red Sea Air | IATA: 7R, Callsign: Eritrean Redsea, IATA Prefix: 593, Designator 7R* recalled by IATA | ER | AVCODES |
| 5011 | ERS | EASTERN RAILWAY SUPPLY | | | PWRC |
| 5012 | ERS | European Rail Shuttle B.V. | City: Rotterdam | NL | TRAFFIC |
| 5013 | ERS | ERS Railways | | NL | VKM |
| 5014 | ERSA | ERMEWA-SAS | | FR | VKM |
| 5015 | ERSB | EASY RELIABLE SHIPPING | | | SCAC4 |
| 5016 | ERSC | ELSTAR SHIPPING CO., S.A. | | | SCAC3 |
| 5017 | ERSC | ENRIGHT RANCH & SUPPLY CO | | | SCAC4 |
| 5018 | ERSE | ENVIRONMENTAL REMEDIATION SERVICES | | | SCAC4 |
| 5019 | ERSH | ERSHIP | | | SCAC3 |
| 5020 | ERSH | ERSHIP S A | | | SCAC4 |
| 5021 | ERSJ | ERSKINE-JOHNS COMPANY | | | SCAC3 |
| 5022 | ERSM | ERNSPIKER/SMITH PARTNERSHIP | | | SCAC3 |
| 5023 | ERSR | EARLY STAR TRUCKING | | | SCAC3 |
| 5024 | ERSS | EXPRESS RIDER INC | | | SCAC4 |
| 5025 | ERST | ERRAND SERVICE TRANSPORTATION INC | | | SCAC3 |
| 5026 | ERST | EMERSON TRANSPORT | | | SCAC4 |
| 5027 | ERSU | EUROSILO B.V. | | | SCAC3 |
| 5028 | ERSV | EMPIRE RELOCATION SERVICES INC | | | SCAC3 |
| 5029 | ERSW | E R S TRUCKING | | | SCAC3 |
| 5030 | ERSX | Excel Railcar Corp. | added 4/2004; 7/2005 | | NAKINA |
| 5031 | ERSX | Excel Railcar Services, Inc. | 7/2000; eliminated 10/2002; added 10/2003; eliminated 4/2004 | | NAKINA |
| 5032 | ERSX | Excel Railcar Services, Inc. | Jul-00 | | NRHS |
| 5033 | ERSX | EXCEL RAILCAR CORP. | | | PWRC |
| 5034 | ERSX | Excel Railcar Services | | | RSRV |
| 5035 | ERSX | EXCEL RAILCAR CORPORATION | | | SCAC4 |
| 5036 | ERSY | EARTH SYSTEMS | | | SCAC3 |
| 5037 | ERT | Eritrean Airlines | IATA: B8, Callsign: Eritrean, IATA Prefix: 637, Ceased Operations. | ER | AVCODES |
| 5038 | ERT | Eritrean Airlines | IATA: B8 | | ICAO1 |
| 5039 | ERTA | ERB TRANSPORT INC | | | SCAC3 |
| 5040 | ERTD | ESCOBEDO, RUBEN TRUCKING COMPANY IN | | | SCAC3 |
| 5041 | ERTE | ELLIS, R & T TRUCKING LLC | | | SCAC4 |
| 5042 | ERTF | EAGLE RIGGING & TRANSFER INC | | | SCAC3 |
| 5043 | ERTG | E & R TRUCKING | | | SCAC3 |
| 5044 | ERTH | EARTH INC | | | SCAC3 |
| 5045 | ERTI | EVANS, RON TRUCKING | | | SCAC3 |
| 5046 | ERTK | E & R TRUCKING INC | | | SCAC3 |
| 5047 | ERTK | ENGLISH, RON TRUCKING | | | SCAC4 |
| 5048 | ERTL | EARLS TRUCK LINES | | | SCAC3 |
| 5049 | ERTL | EARTHTONE LOGISTICS | | | SCAC4 |
| 5050 | ERTM | EARLS TRUCKING | | | SCAC3 |
| 5051 | ERTO | EVEREADY TRANSPORTATION CO | | | SCAC3 |
| 5052 | ERTP | E R TRANSPORT | | | SCAC4 |
| 5053 | ERTQ | E & R TOWING & GARAGE INC | | | SCAC4 |
| 5054 | ERTR | ERSKINE XPRESS INC | | | SCAC3 |
| 5055 | ERTR | ERSKINE XPRESS INC | | | SCAC4 |
| 5056 | ERTS | EASY RIDER TRANSPORTATION LLC | | | SCAC4 |
| 5057 | ERTT | E & R TRANSPORT INC | | | SCAC4 |
| 5058 | ERTU | {LLC "ERANT"};ZIPCODE=01015 | | UA | BIC |
| 5059 | ERTV | E & R TRAFFIC SERVICES INC | | | SCAC4 |
| 5060 | ERTW | EARTHWORM LLC | | | SCAC4 |
| 5061 | ERU | Embry-Riddle Aeronautical University | Callsign: Riddle, | USA | AVCODES |
| 5062 | ERUS | ELRUS INC | | | SCAC4 |
| 5063 | ERUY | ESPINAL, RUSTY | | | SCAC4 |
| 5064 | ERV | Yerevan-Avia | Callsign: Yereban-avia, IATA Prefix: 998, Prefix Code 998 recalled by IATA | AM | AVCODES |
| 5065 | ERV | Yerevan-Avia | | | ICAO1 |
| 5066 | ERVC | ERVCO & ASSOCIATES INC | | | SCAC3 |
| 5067 | ERVC | EARTHVIEW INC | | | SCAC4 |
| 5068 | ERVI | ERVIN TRUCKING COMPANY | | | SCAC3 |
| 5069 | ERVO | EAST RIVER ENERGY INC | | | SCAC4 |
| 5070 | ERVS | ERNIE'S VAN & STORAGE, INC | | | SCAC3 |
| 5071 | ERVT | ERVIN TRUCKING COMPANY | | | SCAC3 |
| 5072 | ERWA | EARTHWATCH WASTE SYSTEMS INC | | | SCAC4 |
| 5073 | ERWG | ERW TRUCKING | | | SCAC4 |
| 5074 | ERWI | ERWINS TRUCKING SERVICE | | | SCAC3 |
| 5075 | ERWI | ERWIN BROTHERS TRANSPORTATION LLC | | | SCAC4 |
| 5076 | ERWN | ERWIN TRUCKING INC | | | SCAC3 |
| 5077 | ERWN | ERWIN BROTHERS LLC | | | SCAC4 |
| 5078 | ERWQ | ERWIN OIL COMPANY INC | | | SCAC3 |
| 5079 | ERWR | EARNSWORTH COMPANY LTD | | | SCAC3 |
| 5080 | ERWS | ERNIES WRECKER SERVICE INC | | | SCAC3 |
| 5081 | ERWS | E R W | | | SCAC4 |
| 5082 | ERX | Earth Airlines services Limited | Callsign: Earth Air, | WAN | AVCODES |
| 5083 | ERX | Earth Airlines Services | | | ICAO1 |
| 5084 | ERX | Canadian Kodiak Refineries Ltd. | added 7/1960; 4/1961; eliminated 7/1961 | | NAKINA |
| 5085 | ERX | Excelsior Refineries Ltd. | 1/1950-10/1957; eliminated 7/1960 | | NAKINA |
| 5086 | ERX | Emlenton Refining Co. | 8/1920 & 7/1930 | | NAKINA |
| 5087 | ERX | Excelsior Refineries Ltd. | 1/52-10/57; eliminated 7/60 | | NRHS |
| 5088 | ERX | Canadian Kodiak Refineries Ltd. | added 7/60; 4/61 | | NRHS |
| 5089 | ERX | *EMLENTON REFINING CO. | | | PWRC |
| 5090 | ERX | *CANADIAN KODIAK REFINERIES LTD. [EXCELSIOR REFINERIES LTD.] | | | PWRC |
| 5091 | ERX | EuroRailExpress | | NL | VKM |
| 5092 | ERXD | EUROMEX OF GEORGIA INC (TL | | | SCAC4 |
| 5093 | ERXE | EMREX INC | | | SCAC4 |
| 5094 | ERXI | ERX INC | | | SCAC3 |
| 5095 | ERXI | EUROMEX OF GEORGIA INC | | | SCAC4 |
| 5096 | ERY | Sky Quest LLC | Callsign: Erie Shore, | USA | AVCODES |
| 5097 | ERYC | EMPRESA | | | SCAC4 |
| 5098 | ERYM | EAGLE READY MIX | | | SCAC4 |
| 5099 | ERYT | EARLY TRANSPORTATION SERVICES | | | SCAC3 |
| 5100 | ERYT | EARLY TRANSPORTATION SERVICES | | | SCAC4 |
