Registration Area Codes pre-2001

H London
HA Dudley (Smethwick until 1974)
HB Cardiff (Merthyr Tydfil until 1974)
HC Brighton (Eastbourne until 1974; Hastings until 1980)
HD Huddersfield (Dewsbury until 1974)
HE Sheffield (Barnsley until 1974)
HF Liverpool (Wallasey until 1974)
HG Preston (Burnley until 1974)
HH Carlisle
HJ Chelmsford (Southend-on-Sea until 1974)
HK Chelmsford
HL Sheffield (Wakefield until 1974)
HM East Ham ( changed to London (Cent) from 1967)
HN Middlesbrough (Darlington until 1974)
HO Bournemouth (Salisbury until 1980)
HP Coventry
HR Swindon
HS Glasgow (Renfrewshire until 1974)
HT Bristol
HU Bristol
HV East Ham (Changed to London (Cent) from 1967
HW Bristol
HX London (Central) (Middlesex before 1965)
HY Bristol