Real world company prefixes

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M n O P Q R S T U V W X Y Z Ø
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
HLA HLB HLC HLD HLE HLF HLG HLH HLI HLJ HLK HLL HLM HLN HLO HLP HLQ HLR HLS HLT HLU HLV HLW HLX HLY HLZ
HLQT
1 HLQ Harlequin Air Corporation IATA: JH, Callsign: Harlequin, Designator JH* recalled by IATA. IATA designator changed from BQ* J AVCODES
2 HLQ Harlequin Air Corporation IATA: BQ, Callsign: Harlequin, IATA designator changed to JH J AVCODES
3 HLQ Harlequin Air   J TRAFFIC
4 HLQT HELIQWEST AVIATION INC     SCAC4