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
SQA SQB SQC SQD SQE SQF SQG SQH SQI SQK SQL SQM SQN SQO SQP SQQ SQR SQS SQT SQU SQV SQW SQX
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1 SQ Singapore Airlines ICAO: SIA, Callsign: Singapore, IATA Prefix: 618, Name changed to Singapore Airlines Limited SGP AVCODES
2 SQ Singapore Airlines Cargo PTE Ltd. ICAO: SQC, Callsign: Singcargo, IATA Prefix: 618, Merged into Singapore Airlines on 01/04/2018. SGP AVCODES
3 SQ Norcanair IATA designator changed to NK CDN AVCODES
4 SQ Singapore Airlines Limited ICAO: SIA, Callsign: Singapore, IATA Prefix: 618, Name changed from Singapore Airlines SGP AVCODES
5 SQA Slovak National Aeroclub Callsign: Slovak Aeroclub, SK AVCODES
6 SQA Slovak National Aeroclub     ICAO1
7 SQAD SQUARE TRANSPORTATION INC     SCAC4
8 SQAE SALLEE INC     SCAC4
9 SQAG S T & W BROKERAGE LLC     SCAC4
10 SQAH SIMPLY AMISH     SCAC4
11 SQAL SOUTHERN LOGISTICS AND EQUIPMENT CO     SCAC4
12 SQAM SAMS TRUCKING LLC     SCAC4
13 SQAN SEATRANS CHEMICAL TANKERS AS     SCAC4
14 SQAT SEVENTH AFRAMAX TANKER CORPORATION     SCAC4
15 SQAW SKATES EQUIPMENT     SCAC4
16 SQAY SANRITSU LOGISTICS AMERICA INC     SCAC4
17 SQBR SOUTH BAY RECYCLING     SCAC4
18 SQBT SEASIDES BEST TOUR     SCAC4
19 SQC Singapore Airlines Cargo PTE Ltd. IATA: SQ, Callsign: Singcargo, IATA Prefix: 618, Merged into Singapore Airlines on 01/04/2018. SGP AVCODES
20 SQC Singapore Airlines Cargo IATA: SQ   ICAO1
21 SQCA SOUTHERN CAL TRANSPORT CO     SCAC4
22 SQCE SELECT CLASSIC CARRIERS INC     SCAC4
23 SQCH SHIPPERS CHOICE TRANSPORTATION LLC     SCAC4
24 SQCI SPECIALTY CARRIERS INC     SCAC4
25 SQCN STEELCASE CANADA LIMITED     SCAC4
26 SQCO STARCO INC     SCAC4
27 SQCP SMT COMPANY     SCAC4
28 SQCQ SLCS CORPORATION     SCAC4
29 SQCT SPECIALTY CONTRACT CARRIERS INC     SCAC4
30 SQCV SILVER CREEK EXPRESS INC     SCAC4
31 SQD Tomorrow's Aeronautical Museum, Inc. Callsign: Aero Squad, USA AVCODES
32 SQDL STORE TO DOOR LLC     SCAC4
33 SQDN SUEDEMAS     SCAC4
34 SQDO SUNSPACE MODULAR ENCLOSURES INC     SCAC4
35 SQEC SPECTRUM CATERING     SCAC4
36 SQEH STARLITE ENTERPRISES OF HARDY COUNT     SCAC4
37 SQEP SON SHINE EXPRESS     SCAC4
38 SQES SCALES EXPRESS INC     SCAC4
39 SQF Slovak Air Force Callsign: Slovak Air Force, SK AVCODES
40 SQF Slovak Air Force     ICAO1
41 SQGC SPICER PLUS INC     SCAC4
42 SQGS SITTON LOGISTICS LLC     SCAC4
43 SQH Ford Aire Callsign: Susquehanna, USA AVCODES
44 SQH Alaska Juneau Aeronautics, Inc. Callsign: Sasquatch, Name changed to Seaport Airlines, Inc. USA AVCODES
45 SQH Seaport Airlines, Inc. IATA: K5, Callsign: Sasquatch, Ceased operations on 20 September 2016 and filed for Chapter 7 bankruptcy. Name changed from Alaska Juneau Aeronautics, Inc. USA AVCODES
46 SQHC STROHL OIL CO     SCAC4
47 SQHD SAHIR TRUCKING LTD     SCAC4
48 SQHE SANDY HILLS ELK RANCH     SCAC4
49 SQHG SEA CENTRAL SHIPPING CORPORATION     SCAC4
50 SQHI STAHL OIL COMPANY INC     SCAC4
51 SQHK SMITH, CURTIS TRUCKING     SCAC4
52 SQHM SCHMUCKAL OIL CO     SCAC4
53 SQHN SCHREINERS INC     SCAC4
54 SQHO SHORES OIL COMPANY     SCAC4
55 SQIG SUNSET LOGISTICS INC     SCAC4
56 SQIH SHINE TRANSPORTATION INC     SCAC4
57 SQIN SUMMIT TRANSPORTATION     SCAC4
58 SQIY SALT CITY INC     SCAC4
59 SQKD SOUTHEAST CONSOLIDATORS INC (LOGIST     SCAC4
60 SQKI SEAQUA TRUCKING INC     SCAC4
61 SQKO SOUTHEAST CONSOLIDATORS INC (BROKER     SCAC4
62 SQKR SHELDRAKE TRANSPORT INC     SCAC4
63 SQKT SOUTHLAKE TRANSPORT INC     SCAC4
64 SQKY SKY TRANSPORT INC     SCAC4
65 SQL Servicios de Alouiler Aereo, S.A. de C.V. Callsign: Alquiler, MEX AVCODES
66 SQL Servicos De Alquiler     ICAO1
67 SQLA SALAAMA TRUCKING INC     SCAC4
68 SQLB STONERIDGE QUARRIES LTD     SCAC4
69 SQLC STRUCTURAL TECH CORPORATION LTD     SCAC4
70 SQLD SPECIAL LOGISTICS INC     SCAC4
71 SQLF STARLITE COLONY FARMS LTD     SCAC4
72 SQLJ SAN QUINTIN LOGISTICS     SCAC4
73 SQLL SQL     SCAC4
74 SQLO SPECTRUM LOGISTICS     SCAC4
75 SQLR SEALE MARINE     SCAC4
76 SQLV SLIM LINE VENDING INTERNATIONAL LTD     SCAC4
77 SQM Evergreen Express Airways Callsign: Skwim, USA AVCODES
78 SQM Siam Air Transport Co., Ltd. IATA: O8, Callsign: Golden Fin, IATA Prefix: 874, T AVCODES
79 SQM Sociedad Química y Minera   RCH TRAFFIC
80 SQMA SMITH, ARTHUR TRUCKING INC     SCAC4
81 SQMC S & M TRANSPORT     SCAC4
82 SQMD SIERRA MOUNTAIN INC     SCAC4
83 SQME SCOTT PETROLEUM CORPORATION     SCAC4
84 SQMI STRUCTURAL METALS INC     SCAC4
85 SQMM SCRUMMASTER     SCAC4
86 SQMN S M TRANSPORT     SCAC4
87 SQMS SUPERIOR MARITIME SERVICES INC     SCAC4
88 SQMV SIMMONS MOVING & STORAGE INC     SCAC4
89 SQNA SBS TRANSPORTATION INC     SCAC4
90 SQNC SONOCO LIMITED     SCAC4
91 SQND SENIOR OIL INC     SCAC4
92 SQNE SEQUOIALINE INC     SCAC4
93 SQNI SHANE TRANSPORTATION INC     SCAC4
94 SQNP SUN TRANSPORT     SCAC4
95 SQNQ SHELLHORN & HILL INC     SCAC4
96 SQNS SUNSTATE CARRIERS INC     SCAC4
97 SQNT STONES TRANSPORT INC     SCAC4
98 SQOC SOCI PETROLEUM INC     SCAC4
99 SQOI SCITUATE OIL CO INC     SCAC4
100 SQOL STAR OIL CO     SCAC4
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