Real world company prefixes
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S& SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ
SE& SEA SEB SEC SED SEE SEF SEG SEH SEI SEJ SEK SEL SEM SEN SEO SEP SEQ SER SES SET SEU SEV SEW SEX SEY SEZ
S& SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ
SE& SEA SEB SEC SED SEE SEF SEG SEH SEI SEJ SEK SEL SEM SEN SEO SEP SEQ SER SES SET SEU SEV SEW SEX SEY SEZ
| 1 | SE | Ferrocarrils Unidos del Sureste, S.A. de C.V. | 1/75-1/80 | NRHS | |
| 2 | SE | *FERROCARRILES UNIDOS DEL SURESTE | PWRC | ||
| 3 | SE | +SEMO PORT RAILROAD INCORPORATED | PWRC | ||
| 4 | SE | Ferrocarrils Unidos del Sureste, S.A. de C.V. | 1/1975-1/1980 | NAKINA | |
| 5 | SE | Semo Port R.R., Inc. | added 1/1995; 7/2000-7/2005 | NAKINA | |
| 6 | SE | Förderverein Steigerwald-Express e.V | DE | VKM | |
| 7 | SE | Ferrocarriles Unidos del Sureste | RSRV | ||
| 8 | SE | SEMO PORT RAILROAD INC | SCAC4 | ||
| 9 | SE | Semo Port R.R., Inc. | added 1/95; 7/2000 | NRHS | |
| 10 | SE&W | ST. LOUIS, EL RENO & WESTERN RWY. CO. | PWRC | ||
| 11 | SE&W | The St. Louis, El Reno and Western Ry. Co. | 7/1923 | NAKINA | |
| 12 | SEA | Southeast Air | ICAO1 | ||
| 13 | SEA | Service des Essences des Armées | FR | VKM | |
| 14 | SEA | SEASHORE TRANSPORTATION CO INC | SCAC4 | ||
| 15 | SEAA | SEA ENTERPRISES | SCAC4 | ||
| 16 | SEAC | SEALAND SERVICE, INC. | PWRC | ||
| 17 | SEAC | SEA-COLD SERVICE, INC | SCAC4 | ||
| 18 | SEAE | SEAPORT EXPRESS TRANSPORT INC | SCAC4 | ||
| 19 | SEAF | SEAWAY FUELS TRUCKING INC | SCAC4 | ||
| 20 | SEAG | Schweizer Electronic AG | CH | VKM | |
| 21 | SEAG | SEAGATE LOGISTICS INC | SCAC4 | ||
| 22 | SEAH | SEAHORSE TRANSPORT INC | SCAC4 | ||
| 23 | SEAI | S E A CORP | SCAC4 | ||
| 24 | SEAL | SEALAND INDUSTRIES LTD | SCAC4 | ||
| 25 | SEAM | SEAMAR CONT SHIPPING INC NJ | SCAC4 | ||
| 26 | SEAN | SEACON | SCAC4 | ||
| 27 | SEANT | SEANTO, S.L. | ES | VKM | |
| 28 | SEAO | SEA ISLAND BONDED STORAGE OF GA INC | SCAC4 | ||
| 29 | SEAP | SEATAINER TRANSPORT LP | SCAC4 | ||
| 30 | SEAQ | SEA TANKERS SHIPPING INC | SCAC4 | ||
| 31 | SEAR | SEAROSE MARINE SA | SCAC4 | ||
| 32 | SEARL | SEA-RAIL NV | BE | VKM | |
| 33 | SEAS | Slovenské elektrárne a.s. | SK | VKM | |
| 34 | SEAS | SEASTAR MARINE SA | SCAC4 | ||
| 35 | SEAU | SEA-LAND SERVICE, INC | SCAC1 | ||
| 36 | SEAU | SEALAND SERVICE INC | PWRC | ||
| 37 | SEAU | Sea-Land Service Inc | RSRV | ||
| 38 | SEAU | A P MOLLER | SCAC4 | ||
| 39 | SEAW | SEA WINGS USA | SCAC4 | ||
| 40 | SEAX | Seahorse Fuels, Inc. | added 1/62; 7/65-4/70 | NRHS | |
| 41 | SEAX | SEAHOURSE FUELS, INC. | PWRC | ||
| 42 | SEAX | Seahorse Fuels, Inc. | added 1/1962; 7/1965-4/1970; eliminated 7/1971 | NAKINA | |
| 43 | SEAY | SESA EXPRESS INC | SCAC4 | ||
| 44 | SEB | Servicios Aereos Luce | ICAO1 | ||
| 45 | SEBA | SEBAGO ENERGY CO | SCAC4 | ||
| 46 | SEBD | SEABOARD INTERNATIONAL SHIPPING CO | SCAC4 | ||
| 47 | SEBF | SEALINK INTERNATIONAL INC | SCAC4 | ||
| 48 | SEBJ | SHOWBOUND EXPRESS INC | SCAC4 | ||
| 49 | SEBN | SPRINGER-EUBA | SCAC4 | ||
| 50 | SEBO | SEBERT OIL INC | SCAC4 | ||
| 51 | SEBQ | SEWARD GROUP, THE | SCAC4 | ||
| 52 | SEBT | SEABOATS INC | SCAC4 | ||
| 53 | SEBUC | SUCURSALA ELECTROCENTRALE BUCURESTI | RO | VKM | |
| 54 | SEC | 3D Aviation | ICAO1 | ||
| 55 | SECD | SEC SAWMILL EQUIPMENT COMPANY INC | SCAC4 | ||
| 56 | SECE | SEACOAST TRUCKING INC | SCAC4 | ||
| 57 | SECG | SILVER EAGLE COMPANY | SCAC1 | ||
| 58 | SECG | SILVER EAGLE CO | PWRC | ||
| 59 | SECG | SOUND FUEL LLC | SCAC4 | ||
| 60 | SECK | SECAS TRUCKING | SCAC4 | ||
| 61 | SECN | SEELEY AND ARNILL CONSTRUCTION | SCAC4 | ||
| 62 | SECO | SEWCO INC. | PWRC | ||
| 63 | SECO | SOUTHEAST COOPERATIVE SERVICE COMPA | SCAC4 | ||
| 64 | SECR | SCREAMIN EAGLE CARTAGE INC | SCAC4 | ||
| 65 | SECS | EUROTAINER S.A.R.L | SCAC3 | ||
| 66 | SECS | EUROTAINER S.A.R.L. | PWRC | ||
| 67 | SECT | SELECT TRANSPORTATION SERVICES DIVI | SCAC4 | ||
| 68 | SECU | EUROTAINER SA | SCAC4 | ||
| 69 | SECV | SUPERIOR TRANSPORT INC | SCAC4 | ||
| 70 | SECX | Southern Extract Co. (The Mead Corp.) | Apr-38 | NRHS | |
| 71 | SECX | *SOUTHERN EXTRACT CO. | PWRC | ||
| 72 | SECX | *(NATX) GENERAL ELECTRIC RAILCAR SERVICES CORP. [SOUTH EAST COAL CO.] | PWRC | ||
| 73 | SECX | Southern Extract Co. | 8/1920-4/1938 | NAKINA | |
| 74 | SECX | South-East Coal Co. | added 1/1975; 1/1975-1/1980; eliminated 7/1993; 1/1994 (not listed) | NAKINA | |
| 75 | SECX | General Electric Railcar Services Corp. | eliminated 1/2000 | NAKINA | |
| 76 | SECX | General Electric Rail Services Corp. | added 1/2000; 7/2000 (not listed); eliminated 10/2001 | NAKINA | |
| 77 | SECX | South-East Coal | RSRV | ||
| 78 | SECX | South-East Coal Co. | added 1/75; 1/75-1/80; eliminated 7/93; 1/94 | NRHS | |
| 79 | SECX | General Electric Railcar Services Corp. | eliminated 1/2000 | NRHS | |
| 80 | SECX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | NRHS | |
| 81 | SECY | STEWART TRUCKING | SCAC4 | ||
| 82 | SED | Sedona Air Center | ICAO1 | ||
| 83 | SEDA | SUPERIOR SUGARDALE MEATS | SCAC4 | ||
| 84 | SEDB | SP EXPRESS TRANSPORTATION MANAGEMEN | SCAC4 | ||
| 85 | SEDE | SAMPSON'S CARGO CARRIER | SCAC4 | ||
| 86 | SEDG | SATURN ELECTRONICS DE MONTERREY SA | SCAC4 | ||
| 87 | SEDM | STAR EXPRESS DIV OF TWO TWO | SCAC4 | ||
| 88 | SEDN | SNELSON, RICK & SON INC | SCAC4 | ||
| 89 | SEDQ | STERLING EDGE INC | SCAC4 | ||
| 90 | SEDS | SPECIAL ELECTRONICS & DESIGNS INC | SCAC4 | ||
| 91 | SEDT | SERVICIO EXPRESS DE TIJUANA S DE R | SCAC4 | ||
| 92 | SEDU | SCHENKER-BTL (DEUTSCHLAND) AG | SCAC4 | ||
| 93 | SEDW | STONEARCH LOGISTICS LLC | SCAC4 | ||
| 94 | SEE | Shaheen Air Cargo | ICAO1 | ||
| 95 | SEEA | SPECIALIZED PAVEMENT MARKING, INC | SCAC4 | ||
| 96 | SEEB | SKI APACHE | SCAC4 | ||
| 97 | SEEC | SPIRIT ENTERPRISE | SCAC4 | ||
| 98 | SEED | SEEDS 2000 INC | SCAC4 | ||
| 99 | SEEG | S E TRANSPORT LLC | SCAC4 | ||
| 100 | SEEJ | SEERY, JIM TRUCKING | SCAC4 |