Real world company prefixes

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H& H0 H1 H2 H3 H4 H5 H6 H7 H8 H9 HA HB HC HD HE HF HG HH HI HJ HK HL HM HN HO HP HQ HR HS HT HU HV HW HX HY HZ
HYA HYB HYC HYD HYE HYF HYG HYH HYI HYJ HYK HYL HYM HYN HYO HYP HYR HYS HYT HYU HYV HYW HYX
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1 HY European Airways Ltd. ICAO: EAW, Callsign: European, GB AVCODES
2 HY Henry Nielsen, Oy, Ab. Callsign: Henrynielsen, FIN AVCODES
3 HY Hala Air ICAO: HTP, Callsign: Hala Express, IATA Designator chnaged to HG. LAR AVCODES
4 HY Uzbekistan Airways Joint Stock Company ICAO: UZB, Callsign: Uzbek, IATA Prefix: 250, Name changed from Uzbekistan Havo Yullary - Uzbekistan Airways. UZ AVCODES
5 HYA Hyack Air (1981) Ltd. Callsign: Hyack, CDN AVCODES
6 HYA Al-Haya Aviation IATA: HA, Callsign: Alhaya, IATA Prefix: 164, IRQ AVCODES
7 HYA Hyack Air     ICAO1
8 HYAJ HYATT, JIM PRODUCE CO INC     SCAC4
9 HYAP HYDRA TRANSPORTATION     SCAC4
10 HYAR HILLYARD FARMS     SCAC4
11 HYAT HYBRID TRANSIT SYSTEMS INC     SCAC4
12 HYAU PETROCHEMICA     SCAC4
13 HYBB HOLIWAY TRANSPORT     SCAC4
14 HYBD HYBUR LTD     SCAC4
15 HYBE HYBELS, BERT R INC     SCAC4
16 HYBH HARDY BROTHERS INC     SCAC4
17 HYBI HYBRID INTERMODAL TRANSPORTATION LL     SCAC4
18 HYBL HYBRID LOGISTICS INC     SCAC4
19 HYBM HAPPY BURRITO, THE     SCAC4
20 HYBS HONEYCOMB MAILING SERVICES LIMITED     SCAC4
21 HYBU HYBUR LTD     SCAC1
22 HYBU HYBUR LTD     SCAC4
23 HYC Hydro Air (PTY) Ltd. Callsign: Hydro Cargo, ZA AVCODES
24 HYC Hydro Air Flight Operations     ICAO1
25 HYCB HYMARK EXPRESS INC     SCAC4
26 HYCC HAPPY YELLOW CHECKER CAB     SCAC4
27 HYCD HAYCOCK DISTRIBUTING CO INC     SCAC4
28 HYCI HAY, CLIFFORD C INC     SCAC4
29 HYCK HAY CREEK EXPRESS INC     SCAC4
30 HYCM HYDRO CHEM INDUSTRIAL SERVICES INC     SCAC4
31 HYCO HUSKEY BUS & TRANSPORTATION SERVICE     SCAC4
32 HYCQ HOMETOWN ENERGY LLC     SCAC4
33 HYCT HUNEYCUTT TRANSPORT     SCAC4
34 HYCW HAYWORTH, C & V TRUCKING CO     SCAC4
35 HYD Hydro-Quebec IATA: 0Q, Callsign: Hydro, Designator 0Q* recalled by IATA. CDN AVCODES
36 HYD Hydro-Quebec Callsign: Hydro, Designator 0Q* recalled by IATA. CDN AVCODES
37 HYD Hydro-QuA~©bec     ICAO1
38 HYDA HYDER TRANSPORTATION LLC     SCAC4
39 HYDB HYDER BOYS TRANSPORT LLC     SCAC4
40 HYDC HAYDEN TRANSPORTATION LLC     SCAC4
41 HYDD HIGIENICOS Y DESECHABLES DEL BAJIO     SCAC4
42 HYDG HYDE, GENE TRUCKING CO INC     SCAC4
43 HYDK HAYDUK ENTERPRISES INC     SCAC4
44 HYDL HYDE, GENE LOGISTICS INC     SCAC4
45 HYDN HAYDEN TRANSPORT INC     SCAC4
46 HYDP HYDRO TECHNOLOGIES (CANADA) INC     SCAC4
47 HYDR HYDRAULICS UNLIMITED     SCAC4
48 HYDR Hydrema Baumaschinen GmbH   DE VKM
49 HYDS HYDROUSSA SHIPPING CO. S A     SCAC4
50 HYDU XINJIANG HONGYUNDA FREIGHT INTERNATIONAL CO., LTD.   PRC BIC
51 HYDU HYDE SHIPPING     SCAC1
52 HYDU Hyundai     SCAC2
53 HYDU AMPHIBIOUS CONTAINERS LEASING LTD     SCAC4
54 HYDX Praxair, Inc. added 1/1993; 1/1994-7/2005   NAKINA
55 HYDX Union Carbide Corp., Chemicals and Plastics Co., Inc. eliminated 1/1993   NAKINA
56 HYDX Union Carbide Corp. added 5/1983   NAKINA
57 HYDX Union Carbide Corp., Chemicals and Plastics Co., Inc. eliminated 5/1983   NAKINA
58 HYDX Union Carbide Corp., Chemicals and Plastics Division added 10/1980   NAKINA
59 HYDX Union Carbide Corp., Chemicals and Plastics Co., Inc. added 7/1980   NAKINA
60 HYDX Union Carbide Corp. eliminated 10/1980   NAKINA
61 HYDX Union Carbide Corp., Chemicals and Plastics Co., Inc. added 7/1980   NAKINA
62 HYDX Union Carbide Corp., Chemicals and Plastics Division added 1/1979; 1/1980; eliminated 7/1980   NAKINA
63 HYDX Union Carbide Corp., Chemicals and Plastics Operations Division added 1/1968; 4/1970-1/1975; eliminated 1/1979   NAKINA
64 HYDX Union Carbide Corp., Chemicals and Plastics added 10/1967; eliminated 1/1968   NAKINA
65 HYDX Union Carbide Corp., Chemicals Division added 7/1961; 7/1965-10/1966; eliminated 10/1967   NAKINA
66 HYDX Union Carbide Corp., Chemicals Division 7/65-10/66; eliminated 10/67   NRHS
67 HYDX Union Carbide Corp., Chemicals and Plastics added 10/67; eliminated 1/68   NRHS
68 HYDX Union Carbide Corp., Chemicals and Plastics Operations Division added 1/68; 4/70-1/75; eliminated 1/79   NRHS
69 HYDX Union Carbide Corp., Chemicals and Plastics Division added 1/79; 1/80; eliminated 7/80   NRHS
70 HYDX Union Carbide Corp., Chemicals and Plastics Co., Inc. added 7/80   NRHS
71 HYDX Union Carbide Corp. eliminated 10/80   NRHS
72 HYDX Union Carbide Corp., Chemicals and Plastics Co., Inc. added 7/80   NRHS
73 HYDX Union Carbide Corp., Chemicals and Plastics Division added 10/80   NRHS
74 HYDX Union Carbide Corp., Chemicals and Plastics Co., Inc. eliminated 5/83   NRHS
75 HYDX Union Carbide Corp. added 5/83   NRHS
76 HYDX Union Carbide Corp., Chemicals and Plastics Co., Inc. eliminated 1/93   NRHS
77 HYDX Praxair, Inc. added 1/93; 1/94-7/2000   NRHS
78 HYDX (UCOX) PRAXAIR, INC. [UNION CARBIDE CORP.]     PWRC
79 HYDX Union Carbide Corporation (Praxair)     RSRV
80 HYDX PRAXAIR, INC.     SCAC4
81 HYE Hyeres Sero Service Callsign: Hyero, F AVCODES
82 HYEC HAYLES EXPRESS CARRIER     SCAC4
83 HYED HARDY, EDWIN TRUCKING INC     SCAC4
84 HYEG HERRERA, YEGUADA     SCAC4
85 HYES HAYES, STEPHEN     SCAC4
86 HYFA HERBTHYME FARMS     SCAC4
87 HYFC HYDE FUEL CO     SCAC4
88 HYFM HYMAN FARMS TRUCKING     SCAC4
89 HYGR HYGRID LOGISTICS INC     SCAC4
90 HYGX North American Car Corp. 4/1947-7/1965; eliminated 10/1965   NAKINA
91 HYGX North American Car Corp. 1/52-7/65; eliminated 10/65   NRHS
92 HYGX NORTH AMERICAN CAR CORP.     PWRC
93 HYH Heli Hungary Ltd. Callsign: Helihungary, H AVCODES
94 HYH Heli Hungary     ICAO1
95 HYHI HAILEYS HAULING INC     SCAC4
96 HYHY HAYES & HAYES TRUCKING INC     SCAC4
97 HYIL HYATT INDUSTRIES LIMITED     SCAC4
98 HYJ Happy Jet Co., Ltd. Callsign: Happy Jet, PRC AVCODES
99 HYJA HAYNES, JOHN A TRUCKING     SCAC4
100 HYJC HURLEY, J C     SCAC4
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