Registration Area Codes pre-2001

Y Somerset
YA Taunton
YB Taunton
YC Taunton
YD Taunton
YE London (Central)
YF London (Central)
YG Leeds
YH London (Central)
YJ Brighton (Dundee until 1974)
YK London (Central)
YL London (Central)
YM London (Central)
YN London (Central)
YO London (Central)
YP London (Central)
YR London (Central)
YS Glasgow
YT London (Central)
YU London (Central)
YV London (Central)
YW London (Central)
YX London (Central)
YY London (Central)