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
HRA HRB HRC HRD HRE HRF HRG HRH HRI HRJ HRK HRL HRM HRN HRO HRP HRQ HRR HRS HRT HRU HRV HRW HRX HRY HRZ
HRDD HRDE HRDF HRDH HRDK HRDL HRDM HRDN HRDR HRDV HRDX
1 HRDL Hudson River Day Line 1/1975-1/1980   NAKINA
2 HRDL Hudson River Day Line 1/75-1/80   NRHS
3 HRDL HUDSON RIVER DAY LINE     PWRC
4 HRDL Hudson River Day Line     RSRV