AL​ - St Albans   

B - Birmingham

CH - Chester

CV - Coventry     

CW - Crewe

DE - Derbyshire

DY - Dudley 

EC - East Central London

E - East London

EN - Enfield                          

HA - Harrow

HP - Hemel Hempstead

IG - Ilford

LE - Leicester

LU - Luton

MK - Milton Keynes

NN - Northampton

N-North London

NG - Nottingham

NW - Northwest London

OX - Oxford

S1 - Sheffield

SE - Southeast London      

SK - Stockport

SL - Slough

SW - Southwest London

ST - Stoke

TF - Telford

TW - Twickenham

UB - Uxbridge      

W - West London

WA - Warrington

WC – West Central London 

WD - Watford

WR - Worcester

WS - Walsall

WV - Wolverhampton​​