Zone 1

Zone 2

Zone 3

B

Birmingham

AL

St. Albans

CA

Carlisle

BB

Blackburn

BA

Bath

EX

Exeter

BD

BD1-22

BD

BD23+

LA

LA2 & LA5+

BL

Bolton

BH

Bournemouth

LL

Wrexham

CH

CH1-4, 41-49, 60-66

BN

Brighton

PL

Plymouth

CV

All except CV36

BR

Bromley

SA

Swansea

CW

Crewe

BS

Bristol

SY

SY6-10 & 14+

DE

Derby

CB

Cambridge

TA

Taunton

DN

Doncaster

CF

Cardiff

TQ

Torquay

DY

DY1-13

CH

CH5-40 & 50-59

TR

Truro

FY

Blackpool

CM

Chelmsford

HD

Huddersfield

CO

Colchester

HP

HP5-22 & 27

CR

Croydon

London (inner)

HU

HU1-10, 13-17 & 20

CT

Canterbury

E

HX

Halifax

CV

CV36

EC

L

Liverpool

DA

Dartford

N

LA

LA1, 3, 4

DH

Durham

NW

LE

Leicester

DL

Darlington

SE

LN

Lincoln

DT

Dorchester

SW

LS

LS1-21. 26-29

EN

Enfield

W

LU

Luton

DY

DY14+

WC

M

Manchester

GL

Gloucester

MK

Milton Keynes

GU

Guildford

Zone 4

NG

Nottingham

HA

Harrow

DG

Dumfries

NN

Northampton

HG

Harrogate

EH

Edinburgh

OL

Oldham

HP

HP1-4 & 23-26, 28+

FK

Falkirk

OX

Oxford

HR

Hereford

G

Glasgow

PE

PE1-12, 20-25

HU

HU11,12,18,19

KA

Kilmarnock

PR

Preston

IG

Ilford

ML

Motherwell

S

Sheffield

IP

Ipswich

PA

Paisley

SG

SG1-6, 15-18

KT

Kingston on Thames

TD

Galashields

SK

Stockport

LS

LS22-24

ST

Stoke on Trent

LD

Llandrindodd

Zone 4B

SY

SY1-4, 11-13

ME

Sittingbourne

DD

Dundee

TF

Telford

NE

Newcastle Upon Tyne

KY

Kirkcaldy

WA

Warrington

NP

Newport

PH

PH1-7

WF

Wakefield

NR

Norwich

WN

Wigan

PE

PE13-19 & 26+

Zone 5

WR

WR1-5 & WR7-14

PO

Portsmouth**

AB

Aberdeen (see below)

WS

Walsall

RG

Reading

BT

Northern Ireland

WV

Wolverhampton

RH

Redhill

SI

Southern Ireland

RM

Romford

SG

SG7-14 & SG19+

SL

Slough

Zone 6

SM

Sutton

AB

13, 14 & 30+

SN

Swindon

IV/HS

Inverness

SO

Southampton

KA

27 & 28

SP

Salisbury

KW

Kirkwall

SR

Sunderland

PA

PA21+

SS

Southend on Sea

PH

PH8+

TN

Tonbridge

TR

TR21-25

TS

Middlesbrough

 ZE

TW

Twickenham

Scottish Highlands

UB

Southall

WD

Watford

Scottish Islands

WR

WR6 & WR15+

Isle of Wight

YO

York

PO**

30-41

IM

Isle of Man

JE

Channel Islands

GY