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
SKA SKB SKC SKD SKE SKF SKG SKH SKI SKJ SKK SKL SKM SKN SKO SKP SKQ SKR SKS SKT SKU SKV SKW SKX SKY SKZ
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
SKA SKB SKC SKD SKE SKF SKG SKH SKI SKJ SKK SKL SKM SKN SKO SKP SKQ SKR SKS SKT SKU SKV SKW SKX SKY SKZ
| 1 | SK | Siegener Kreisbahn GmbH | Siegen | D | privat-bahn.de |
| 2 | SK | Seehafen Kiel GmbH & Co KG | Kiel | D | privat-bahn.de |
| 3 | SKA | Rio Air Express | ICAO1 | ||
| 4 | SKAD | SKATEBOARD EXPRESS | SCAC4 | ||
| 5 | SKAE | SCHULTZ, KELLY ANTIQUES | SCAC4 | ||
| 6 | SKAG | SKAGIT FARMERS SUPPLY | SCAC4 | ||
| 7 | SKAI | SKAR TRUCKING INC | SCAC4 | ||
| 8 | SKAJ | Stockholms Kultursällskap för Ånga och Järnväg | SE | VKM | |
| 9 | SKAM | SEAHAW | SCAC4 | ||
| 10 | SKAN | SPRINGFIELD TRUCK LINE LLC | SCAC4 | ||
| 11 | SKANE | Skånetrafiken | SE | VKM | |
| 12 | SKANS | Skanska a.s. | CZ | VKM | |
| 13 | SKAP | SKYLINE DECKING LTD | SCAC4 | ||
| 14 | SKAQ | SEA LINK TRANSPORT INC | SCAC4 | ||
| 15 | SKAR | SASKARC INDUSTRIES INC | SCAC4 | ||
| 16 | SKASK | Skanska SK a.s. | SK | VKM | |
| 17 | SKAT | SKAGIT TRANSPORTATION INC | SCAC4 | ||
| 18 | SKAU | Skaff Cryogenics | RSRV | ||
| 19 | SKB | Skybus Airlines | IATA: SX | ICAO1 | |
| 20 | SKB | Schleifkottenbahn GmbH | Halver | D | privat-bahn.de |
| 21 | SKBA | SKIP BARBER RACING SCHOOL LLC | SCAC4 | ||
| 22 | SKBB | SKYLINE CUSTOMS SERVICES LLC | SCAC4 | ||
| 23 | SKBF | SNEAKER KING OF BUFFALO | SCAC4 | ||
| 24 | SKBN | SKIPPER BROTHERS TANK LINES LLC | SCAC4 | ||
| 25 | SKBO | SKEETER BROKERAGE | SCAC4 | ||
| 26 | SKBP | SMOKY BURN TRANSPORT | SCAC4 | ||
| 27 | SKBQ | STREET KINGS INC | SCAC4 | ||
| 28 | SKBR | SHOKER BROTHERS INCORPORATED | SCAC4 | ||
| 29 | SKBY | SKY-BLUE LOGISTICS LLC | SCAC4 | ||
| 30 | SKC | Skymaster Air Lines | ICAO1 | ||
| 31 | SKCB | SENKO CO LTD | SCAC4 | ||
| 32 | SKCC | SCHECKLA, CRAIG LLC | SCAC4 | ||
| 33 | SKCE | STARLINK CONSOLIDATION SERVICE | SCAC4 | ||
| 34 | SKCF | SITKA COURIER LLC | SCAC4 | ||
| 35 | SKCG | STRICKLAND OIL CO INC | SCAC4 | ||
| 36 | SKCI | SKIERS CHOICE INC | SCAC4 | ||
| 37 | SKCJ | SKYTRUCK CONTAINER LINES | SCAC4 | ||
| 38 | SKCO | SRA KARTING INTERNATIONAL | SCAC4 | ||
| 39 | SKCQ | STICKY MEDIA INC | SCAC4 | ||
| 40 | SKCR | SKY COURIER NETWORK | SCAC4 | ||
| 41 | SKCU | ALE HEAVYLIFT LIMITED | SCAC4 | ||
| 42 | SKCW | SOFILINK CONTINENTAL INC | SCAC4 | ||
| 43 | SKCX | Sinclair-Koppers Co. | added 1/68; 4/70 | NRHS | |
| 44 | SKCX | ARCO CHEMICAL CO. [SINCLAIR-KOPPERS CO.] | PWRC | ||
| 45 | SKCX | Spartan Co-operative Creamery Co. (North Western Refrigerator Line Co.) | 7/1935 | NAKINA | |
| 46 | SKCX | Sinclair-Koppers Co. | added 1/1968; 4/1970; eliminated 1/1974 | NAKINA | |
| 47 | SKCX | Arco Polymers, Inc. | added 1/1974; eliminated 10/1974 | NAKINA | |
| 48 | SKCX | ARCO/Polymers, Inc. | added 10/1974; 1/1975; eliminated 10/1979 | NAKINA | |
| 49 | SKCX | ARCO Polymers, Inc. | added 10/1979; 1/1980; eliminated 10/1982 | NAKINA | |
| 50 | SKCX | ARCO Chemical Co. | added 10/1982; eliminated 1/1984; 1/1994-7/2005 (not listed) | NAKINA | |
| 51 | SKCX | ARCO Chemical | RSRV | ||
| 52 | SKCX | ARCO Polymers, Inc. | 1/75-1/80; eliminated 10/82 | NRHS | |
| 53 | SKCX | ARCO Chemical Co. | added 10/82; 1/94-7/2000 | NRHS | |
| 54 | SKCY | SKY COUNTRY TRANSPORTATION SERVICES | SCAC4 | ||
| 55 | SKD | Sky Harbor Air Service | ICAO1 | ||
| 56 | SKDA | SEMPER TRUCKING INC | SCAC4 | ||
| 57 | SKDB | SILKROAD LOGISTICS | SCAC4 | ||
| 58 | SKDE | SAN KARLOS S DE RL DE | SCAC4 | ||
| 59 | SKDF | STOCKARD ENTERPRISES INC | SCAC4 | ||
| 60 | SKDP | STRICKLAND & SONS PIPELINE INC | SCAC4 | ||
| 61 | SKDQ | SOKIL TRUCKING INC | SCAC4 | ||
| 62 | SKDR | SKANDACOR DIRECT INC | SCAC4 | ||
| 63 | SKDT | STRUCTURES DEREK INTERNATIONAL S A | SCAC4 | ||
| 64 | SKDY | SERHIENKO, DENNIS | SCAC4 | ||
| 65 | SKE | Sky Tours | ICAO1 | ||
| 66 | SKEA | SKY BROKERAGE | SCAC4 | ||
| 67 | SKEC | STOKELY CREEK CARRIERS | SCAC4 | ||
| 68 | SKEF | STARKE ENTERPRISES LLC | SCAC4 | ||
| 69 | SKEG | SHEPARD AND KEMNA ENGINEERED TRANSP | SCAC4 | ||
| 70 | SKEI | SHEIK HALAL FARMS INC | SCAC4 | ||
| 71 | SKEJ | SAMEK ENTERPRISE LLC | SCAC4 | ||
| 72 | SKEK | SKELTON TRUCKING LLC | SCAC4 | ||
| 73 | SKEL | SIEDAK ENTERPRISES LLC | SCAC4 | ||
| 74 | SKEM | SKEEM | SCAC4 | ||
| 75 | SKEO | SKEE, K FUEL OIL | SCAC4 | ||
| 76 | SKEP | SUPERIOR BROKERAGE SERVICES INC | SCAC4 | ||
| 77 | SKEQ | SK TRANSPORT | SCAC4 | ||
| 78 | SKER | SPECK ENTERPRISE TRANSPORTATION INC | SCAC4 | ||
| 79 | SKES | SKE ENTERPRISES LTD | SCAC4 | ||
| 80 | SKEV | SOLIE, KEVIN | SCAC4 | ||
| 81 | SKEW | STEELMAN, | SCAC4 | ||
| 82 | SKEY | SHARKEY TRANSPORT SERVICES INC | SCAC4 | ||
| 83 | SKF | Skycraft | ICAO1 | ||
| 84 | SKFA | S & K TRANSPORTATION LLC | SCAC4 | ||
| 85 | SKFC | SKINNER FURNITURE CORP | SCAC4 | ||
| 86 | SKFG | SENKO FREIGHT LINES | SCAC4 | ||
| 87 | SKFI | SUNRISE TRUCKING INC | SCAC4 | ||
| 88 | SKFL | SPECIAL K FISHERIES LTD | SCAC4 | ||
| 89 | SKFN | SKIF INC | SCAC4 | ||
| 90 | SKFO | SUNTEK AMERICA INC | SCAC4 | ||
| 91 | SKFS | SKYWAY FREIGHT SYSTEMS, INC | SCAC1 | ||
| 92 | SKFS | STAR K TRANSPORTATION INC | SCAC4 | ||
| 93 | SKFY | SHAMROCK FOODS COMPANY | SCAC4 | ||
| 94 | SKG | Skycraft Air Transport | ICAO1 | ||
| 95 | SKGC | S&S TRUCKING CO | SCAC1 | ||
| 96 | SKGC | SAMBRAILO PACKAGING | SCAC4 | ||
| 97 | SKGE | SHAKER GROUP INC | SCAC4 | ||
| 98 | SKGF | S-T TRUCKING INC | SCAC4 | ||
| 99 | SKGH | SKYLIGHT TRANSPORT | SCAC4 | ||
| 100 | SKGJ | SCK LOGISTICS | SCAC4 |