Real world company prefixes

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S& S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 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
SI& SIA SIB SIC SID SIE SIF SIG SIH SII SIJ SIK SIL SIM SIN SIO SIP SIQ SIR SIS SIT SIU SIV SIW SIX SIY SIZ
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1 SI Skynet Airlines Limited ICAO: SIH, Callsign: Bluejet, IATA designator changed to SI IRL AVCODES
2 SI Friesenflug GmbH & Co. KG   D AVCODES
3 SI Sierra Pacific Airlines, Inc. ICAO: SPA, Callsign: Sierra Pacific, Designator SI* reinstated by IATA USA AVCODES
4 SI SaBer Air Private Limited   SGP AVCODES
5 SI Skynet Airlines Limited ICAO: SIH, Callsign: Bluejet, founded in 2001. Ceased operations in 2004. IATA designator changed from SI* IRL AVCODES
6 SI Arab Wings Company ICAO: AWS, Callsign: Arab Wings, Designator SI recalled by IATA JOR AVCODES
7 SI Airx Limited t/a Blue Islands ICAO: BCI, Callsign: Blue Island, Name changed from Airx Limited t/a Lecocqs.com and then from Airx Limited t/a Rockhopper. IATA designator changed from AX*. ICAO designator changed from XAX GBJ AVCODES
8 SI Blue Islands Limited ICAO: BCI, Callsign: Blue Island, Name changed from Airx Limited t/a Lecocqs.com and then from Airx Limited t/a Rockhopper. IATA designator changed from AX*. ICAO designator changed from XAX GBJ AVCODES
9 SI Spokane International R.R. Co. 1/1975-1/1980; added 1/1988   NAKINA
10 SI Union Pacific R.R. Co. added 4/1988; 1/1994; eliminated 4/1994; 7/2000-7/2005   NAKINA
11 SI Spokane International R.R. Co. 1/75-1/80; added 1/88   NRHS
12 SI Union Pacific R.R. Co. added 4/88; 1/94; eliminated 4/94; 7/2000   NRHS
13 SI UNION PACIFIC RAILROAD CO. [SPOKANE INTERNATIONAL RR]     PWRC
14 SI Spokane International Railroad (Union Pacific Railroad)     RSRV
15 SI Spokane International R.R. Co.   USA TRAFFIC
16 SI Sistemi Territoriali S.p.a.   IT VKM
17 SI&P Southern Illinois Ry. and Power Co. 7/1923-7/1930   NAKINA
18 SI&P Southern Illinois Ry. & Power Co. 7/1932   NAKINA
19 SI&P SOUTHERN ILLINOIS RWY. & POWER CO.     PWRC
20 SIA Singapore Airlines IATA: SQ, Callsign: Singapore, IATA Prefix: 618, Name changed to Singapore Airlines Limited SGP AVCODES
21 SIA Singapore Airlines Limited IATA: SQ, Callsign: Singapore, IATA Prefix: 618, Name changed from Singapore Airlines SGP AVCODES
22 SIA Singapore Airlines IATA: SQ   ICAO1
23 SIA Singapore Airlines Limited   SGP TRAFFIC
24 SIAA SIERRAS ALCARAZ, ALEJANDRO     SCAC4
25 SIAD SANTSAR INDUSTRIES INC     SCAC4
26 SIAG SATILLA TRANSPORT INC     SCAC4
27 SIAL SIMMONS, L TRUCKING LLC     SCAC4
28 SIAM SCHNEIDERS IRON & METAL INC     SCAC4
29 SIAN SIARC INC     SCAC4
30 SIAP SILVERTRANS INC     SCAC4
31 SIAR SIMBA LOGISTICS LTD     SCAC4
32 SIAT SST INTERNATIONAL INC     SCAC4
33 SIAU SIAD SOCIETA ITALIANA ACETILENE & DERIVATI SPA   I BIC
34 SIAU SIAD SOCIETA ITALIANA ACETILENE & D     SCAC4
35 SIAV SIMPSON ENTERPRISES LTD     SCAC4
36 SIAW SILVER ARROW, INC     SCAC1
37 SIAW SILVER ARROW INC     SCAC4
38 SIAY SOLIDARITE 2000 INC     SCAC4
39 SIB Joint Stock Company SIAT (Sibaviatrans) IATA: 5M, Callsign: Sibavia, IATA Prefix: 842, Suspended operations at the end of September 2008 due to the Air Union collapse. RUS AVCODES
40 SIB Siba S.p.A.   I AVCODES
41 SIB Sea Air Ltd. Callsign: Sea Air, SLO AVCODES
42 SIB Sibaviatrans IATA: 5M   ICAO1
43 SIBB SOUTHWESTERN ILLINOIS BUS COMPANY L     SCAC4
44 SIBD SIMON TRANSPORT LLC (BROKERAGE DIVI     SCAC4
45 SIBG SIT     SCAC4
46 SIBI SISBRO, INC     SCAC1
47 SIBI SISBRO INC     SCAC4
48 SIBIU Sibiu: Tursib   RO TRAFFIC
49 SIBN SIBRIAN TRUCKING     SCAC4
50 SIBP SIMBA TRANSPORT LTD     SCAC4
51 SIBQ SERVICES INTERNATIONAL     SCAC4
52 SIBS SIMPSON FISHING CO LTD     SCAC4
53 SIBT SIBLEY TRUCKING INC     SCAC4
54 SIBU GE SIMONS INTERNATIONAL TRANSPORT BV   NL BIC
55 SIBU GE SIMONS INTERNATIONAL TRANSPORT B     SCAC4
56 SIBV SCHILLI DISTRIBUTION SERVICES INC     SCAC4
57 SIBZD Siberian Railway   RUS TRAFFIC
58 SIC Air Sicilia S.p.A. IATA: BM, Callsign: Air Sicilia, Ceased operations during 2004. Name changed from Air Sicilia S.R.L. I AVCODES
59 SIC Air Sicilia S.R.L. IATA: BM, Callsign: Air Sicilia, Name changed to Air Sicilia S.p.A. I AVCODES
60 SICC SIX ZERO THREE SIX SIX FIVE ONE (60     SCAC4
61 SICD SPECTRAN, INC     SCAC1
62 SICF SLOAN IMPLEMENT COMPANY     SCAC4
63 SICG SICKLER'S TRUCKING     SCAC4
64 SICH STORM INTERSTATE CO     SCAC4
65 SICJ SILVER CITY ALUMINUM CORP     SCAC4
66 SICL SILVER CITY LUMBER INC     SCAC4
67 SICO SIMPSON EXPRESS AND TRANSFER INC     SCAC4
68 SICR SCHAKE INDUSTRIES INC     SCAC4
69 SICT SV TRUCKING SERVICES LLC     SCAC4
70 SICU SHANGHAI XURONG CONTAINERCO., LTD   PRC BIC
71 SICU SIC PROCESSING GMBH     SCAC4
72 SICW SICOMSA     SCAC4
73 SICX Sloss Industries Corp. added 7/1988; 1/1994-7/2000; eliminated 1/2005; 7/2005 (not listed)   NAKINA
74 SICX Sloss Industries Corp. added 7/88; 1/94-7/2000   NRHS
75 SICX SLOSS INDUSTRIES CORPORATION     PWRC
76 SICX Sloss Industries Corporation     RSRV
77 SICX SLOSS INDUSTRIES CORPORATION     SCAC4
78 SID Sidfin Air Limited Callsign: Sidfin, Z AVCODES
79 SID Sideral Linhas Aereas Ltda Callsign: Sideral, BR AVCODES
80 SIDB SIDHU BROTHERS INC     SCAC4
81 SIDC SIMONSEN TRUCKING     SCAC4
82 SIDE SCHEIDERER TRANSPORT INC     SCAC4
83 SIDER Siderpotenza Steel Works   I TRAFFIC
84 SIDG SIEDHOFF DISTRIBUTING CO     SCAC4
85 SIDH SIDHU SERVICES LTD     SCAC4
86 SIDI SHANE TRANSPORT, Shane Industries, INC     SCAC1
87 SIDI SHANE TRANSPORT     SCAC4
88 SIDM SINDALL TRANSPORT INC     SCAC4
89 SIDO SERVICIOS INTEGRALES DE TRANSPORTES     SCAC4
90 SIDQ STAR INDUSTRIES LLC     SCAC4
91 SIDS SUPERIOR INTERMODAL SERVICES INC     SCAC4
92 SIDU CHEMIKALIEN UND FLUESSIGKEITSTRANSPORTE A. SIEPMANN GMBH   D BIC
93 SIDY SINANO SHIPMANAGEMENT LIMITED     SCAC4
94 SIE Sierra Express Callsign: Serex, USA AVCODES
95 SIE Sierra Express     ICAO1
96 SIE Siemens   D TRAFFIC
97 SIEA SIERRA AGRICULTURAL TRANSPORTATION     SCAC4
98 SIEB SCHIELE ENTERPRISES INC     SCAC4
99 SIEB   City: Siegburg D TRAFFIC
100 SIEC STRIVE TRANSPORT GROUP LLC     SCAC4
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