AL Harpenden, Hatfield, St. Albans, Welwyn, Welwyn Garden City

B Alcester, Birmingham, Bromsgrove, Cradley Heath, Halesowen, Henley-in-Arden, Oldbury, Redditch, Rowley Regis, Smethwick, Solihull, Studley, Sutton Coldfield, Tamworth, West Bromwich

BA Bath (Avon),[Note 2] Bradford-on-Avon (Wiltshire),[Note 3] Bruton, Castle Cary, Frome, Glastonbury, Radstock, Shepton Mallet, Street, Templecombe, Trowbridge, Warminster, Wells, Westbury, Wincanton, Yeovil

BB Accrington, Barnoldswick, Blackburn, Burnley, Clitheroe, Colne, Darwen, Nelson, Rossendale

BD Bingley, Bradford (West Yorkshire),[Note 4] Cleckheaton, Keighley, Settle, Shipley, Skipton

BF BFPO[Note 5]

BH Bournemouth, Broadstone, Christchurch, Ferndown, New Milton, Poole, Ringwood, Swanage, Verwood, Wareham, Wimborne

BL Bolton, Bury

BN Arundel, Brighton, Eastbourne, Hailsham, Hassocks, Henfield, Hove, Lancing, Lewes, Littlehampton, Newhaven, Peacehaven, Pevensey, Polegate, Seaford, Shoreham-by-Sea, Steyning, Worthing

BR Beckenham, Bromley, Chislehurst, Keston, Orpington, Swanley, West Wickham

BS Axbridge, Banwell, Bristol, Cheddar, Clevedon, Wedmore, Weston-super-Mare, Winscombe

BT Antrim, Armagh, Augher, Aughnacloy, Ballycastle, Ballyclare, Ballymena, Ballymoney, Ballynahinch, Banbridge, Bangor (County Down),[Note 6] Belfast, Bushmills, Caledon, Carrickfergus, Castlederg, Castlewellan, Clogher, Coleraine, Cookstown, Craigavon, Crumlin, Donaghadee, Downpatrick, Dromore, Dungannon, Enniskillen, Fivemiletown, Hillsborough, Holywood, Larne, Limavady, Lisburn, Londonderry, Maghera, Magherafelt, Newcastle (County Down),[Note 7] Newry, Newtownabbey, Newtownards, Omagh, Portrush, Portstewart, Strabane

CA Alston, Appleby-in-Westmorland, Beckermet, Brampton, Carlisle, Cleator, Cleator Moor, Cockermouth, Egremont, Frizington, Holmrook, Keswick, Kirkby Stephen, Maryport, Moor Row, Penrith, Ravenglass, Seascale, St. Bees, Whitehaven, Wigton, Workington

CB Cambridge, Ely, Haverhill, Newmarket, Saffron Walden

CF Aberdare, Bargoed, Barry, Bridgend, Caerphilly, Cardiff, Cowbridge, Dinas Powys, Ferndale, Hengoed, Llantwit Major, Maesteg, Merthyr Tydfil, Mountain Ash, Penarth, Pentre, Pontyclun, Pontypridd, Porth, Porthcawl, Tonypandy, Treharris, Treorchy

CH Bagillt, Birkenhead, Buckley, Chester, Deeside, Ellesmere Port (Cheshire),[Note 8] Flint, Holywell, Mold, Neston, Prenton, Wallasey, Wirral

CM Billericay, Bishop's Stortford, Braintree, Brentwood, Burnham-on-Crouch (Essex),[Note 9] Chelmsford, Dunmow, Epping, Harlow, Ingatestone, Maldon, Ongar, Sawbridgeworth, Southminster, Stansted, Witham

CO Bures, Clacton-on-Sea, Colchester, Frinton-on-Sea, Halstead, Harwich, Manningtree, Sudbury, Walton on the Naze (Essex)[Note 10]

CR Caterham, Coulsdon, Croydon, Kenley, Mitcham, Purley, South Croydon, Thornton Heath, Warlingham, Whyteleafe

CT Birchington, Broadstairs, Canterbury, Deal, Dover, Folkestone, Herne Bay, Hythe, Margate, Ramsgate, Sandwich, Westgate-on-Sea, Whitstable

CV Atherstone, Bedworth, Coventry, Kenilworth, Leamington Spa, Nuneaton, Rugby, Shipston-on-Stour, Southam, Stratford-upon-Avon, Warwick

CW Congleton, Crewe, Middlewich, Nantwich, Northwich, Sandbach, Tarporley, Winsford

DA Belvedere, Bexley, Bexleyheath, Dartford, Erith, Gravesend, Greenhithe, Longfield, Sidcup, Swanscombe, Welling

DD Arbroath, Brechin, Carnoustie, Dundee, Forfar, Kirriemuir, Montrose, Newport-on-Tay (Fife),[Note 11] Tayport

DE Alfreton, Ashbourne, Bakewell, Belper, Burton-on-Trent, Derby, Heanor, Ilkeston, Matlock, Ripley, Swadlincote

DG Annan, Canonbie, Castle Douglas, Dalbeattie, Dumfries, Gretna, Kirkcudbright, Langholm, Lockerbie, Moffat, Newton Stewart, Sanquhar, Stranraer, Thornhill

DH Chester le Street, Consett, Durham, Houghton le Spring, Stanley

DL Barnard Castle, Bedale, Bishop Auckland, Catterick Garrison, Crook, Darlington, Ferryhill, Hawes, Leyburn, Newton Aycliffe, Northallerton, Richmond (North Yorkshire),[Note 12] Shildon, Spennymoor

DN Barnetby, Barrow-upon-Humber, Barton-upon-Humber, Brigg, Cleethorpes, Doncaster, Gainsborough, Goole, Grimsby, Immingham, Retford, Scunthorpe, Ulceby

DT Beaminster, Blandford Forum, Bridport, Dorchester, Lyme Regis, Portland, Sherborne, Sturminster Newton, Weymouth

DY Bewdley, Brierley Hill, Dudley, Kidderminster, Kingswinford, Stourbridge, Stourport-on-Severn, Tipton

E London[Note 13]

EC London[Note 14]

EH Balerno, Bathgate (West Lothian),[Note 15] Bo'ness, Bonnyrigg, Broxburn, Currie, Dalkeith, Dunbar, East Linton, Edinburgh, Gorebridge, Gullane, Haddington, Heriot, Humbie, Innerleithen, Juniper Green, Kirkliston, Kirknewton, Lasswade, Linlithgow, Livingston, Loanhead, Longniddry, Musselburgh, Newbridge, North Berwick, Pathhead, Peebles, Penicuik, Prestonpans, Rosewell, Roslin, South Queensferry, Tranent, Walkerburn, West Calder, West Linton

EN Barnet, Broxbourne, Enfield, Hoddesdon, Potters Bar, Waltham Abbey, Waltham Cross

EX Axminster, Barnstaple, Beaworthy, Bideford, Braunton, Bude, Budleigh Salterton, Chulmleigh, Colyton, Crediton, Cullompton, Dawlish, Exeter, Exmouth, Holsworthy, Honiton, Ilfracombe, Lynmouth, Lynton, North Tawton, Okehampton, Ottery St. Mary, Seaton, Sidmouth, South Molton, Tiverton, Torrington, Umberleigh, Winkleigh, Woolacombe

FK Alloa, Alva, Bonnybridge, Callander, Clackmannan, Crianlarich, Denny, Dollar, Doune, Dunblane, Falkirk, Grangemouth, Killin, Larbert, Lochearnhead, Menstrie, Stirling, Tillicoultry

FY Blackpool, Fleetwood, Lytham St. Annes, Poulton-le-Fylde, Thornton-Cleveleys

G Alexandria, Arrochar, Clydebank, Dumbarton, Glasgow, Helensburgh

GL Badminton, Berkeley, Blakeney, Cheltenham, Chipping Campden, Cinderford, Cirencester, Coleford, Drybrook, Dursley, Dymock, Fairford, Gloucester, Lechlade, Longhope, Lydbrook, Lydney, Mitcheldean, Moreton-in-Marsh, Newent, Newnham, Ruardean, Stonehouse, Stroud, Tetbury, Tewkesbury, Westbury-on-Severn, Wotton-under-Edge

GU Aldershot, Alton, Bagshot, Bordon, Camberley, Cranleigh, Farnborough, Farnham, Fleet, Godalming, Guildford, Haslemere, Hindhead, Lightwater, Liphook, Liss, Midhurst, Petersfield, Petworth, Sandhurst, Virginia Water, Windlesham, Woking, Yateley

GY Guernsey

HA Edgware, Harrow, Northwood, Pinner, Ruislip, Stanmore, Wembley

HD Brighouse, Holmfirth, Huddersfield

HG Harrogate, Knaresborough, Ripon

HP Amersham, Aylesbury, Beaconsfield, Berkhamsted, Chalfont St. Giles, Chesham, Great Missenden, Hemel Hempstead, High Wycombe, Princes Risborough, Tring

HR Bromyard, Hereford, Kington, Ledbury, Leominster, Ross-on-Wye

HS Isle of Barra, Isle of Benbecula, Isle of Harris, Isle of Lewis, Isle of North Uist, Isle of Scalpay, Isle of South Uist, Stornoway

HU Beverley, Brough, Cottingham, Hessle, Hornsea, Hull, North Ferriby, Withernsea

HX Elland, Halifax, Hebden Bridge, Sowerby Bridge

IG Barking, Buckhurst Hill, Chigwell, Ilford, Loughton, Woodford Green

IM Isle of Man

IP Aldeburgh, Brandon, Bury St. Edmunds, Diss, Eye, Felixstowe, Halesworth, Harleston, Ipswich, Leiston, Saxmundham, Southwold, Stowmarket, Thetford, Woodbridge

IV Achnasheen, Alness, Ardgay, Avoch, Beauly, Cromarty, Dingwall, Dornoch, Elgin, Fochabers, Forres, Fortrose, Gairloch, Garve, Invergordon, Inverness, Isle of Skye, Kyle, Lairg, Lossiemouth, Muir of Ord, Munlochy, Nairn, Plockton, Portree, Rogart, Strathcarron, Strathpeffer, Strome Ferry, Tain, Ullapool

JE Jersey

KA Ardrossan, Ayr, Beith, Cumnock, Dalry, Darvel, Galston, Girvan, Irvine, Isle of Arran, Isle of Cumbrae, Kilbirnie, Kilmarnock, Kilwinning, Largs, Mauchline, Maybole, Newmilns, Prestwick, Saltcoats, Stevenston, Troon, West Kilbride

KT Addlestone, Ashtead, Chertsey, Chessington, Cobham, East Molesey, Epsom, Esher, Kingston upon Thames, Leatherhead, New Malden, Surbiton, Tadworth, Thames Ditton, Walton-on-Thames (Surrey),[Note 16] West Byfleet, West Molesey, Weybridge, Worcester Park (Surrey)[Note 17]

KW Berriedale, Brora, Dunbeath, Forsinard, Golspie, Halkirk, Helmsdale, Kinbrace, Kirkwall, Latheron, Lybster, Orkney, Stromness, Thurso, Wick

KY Anstruther, Burntisland, Cowdenbeath, Cupar, Dunfermline, Glenrothes, Inverkeithing, Kelty, Kinross, Kirkcaldy, Leven, Lochgelly, St. Andrews

L Bootle, Liverpool, Ormskirk, Prescot

LA Ambleside, Askam-in-Furness, Barrow-in-Furness, Broughton-in-Furness, Carnforth, Coniston, Dalton-in-Furness, Grange-over-Sands, Kendal, Kirkby-in-Furness, Lancaster, Millom, Milnthorpe, Morecambe, Sedbergh, Ulverston, Windermere

LD Brecon, Builth Wells, Knighton, Llandrindod Wells, Llangammarch Wells, Llanwrtyd Wells, Presteigne, Rhayader

LE Ashby-de-la-Zouch, Coalville, Hinckley, Ibstock, Leicester, Loughborough, Lutterworth, Market Harborough, Markfield, Melton Mowbray, Oakham, Wigston

LL Aberdyfi, Abergele, Amlwch, Arthog, Bala, Bangor (Gwynedd),[Note 18] Barmouth, Beaumaris, Betws-y-Coed, Blaenau Ffestiniog, Bodorgan, Brynteg, Caernarfon, Cemaes Bay, Colwyn Bay, Conwy, Corwen, Criccieth, Denbigh, Dolgellau, Dolwyddelan, Dulas, Dyffryn Ardudwy, Fairbourne, Gaerwen, Garndolbenmaen, Harlech, Holyhead, Llanbedr, Llanbedrgoch, Llandudno (Conwy),[Note 19] Llandudno Junction (Conwy),[Note 20] Llanerchymedd, Llanfairfechan, Llanfairpwllgwyngyll, Llangefni, Llangollen, Llanrwst, Llwyngwril, Marianglas, Menai Bridge, Moelfre, Penmaenmawr, Penrhyndeudraeth, Pentraeth, Penysarn, Porthmadog, Prestatyn, Pwllheli, Rhosgoch, Rhosneigr, Rhyl, Ruthin, St. Asaph, Talsarnau, Talybont (Gwynedd),[Note 21] Trefriw, Ty Croes, Tyn-y-Gongl, Tywyn, Wrexham, Y Felinheli

LN Alford (Lincolnshire),[Note 22] Horncastle, Lincoln, Louth, Mablethorpe, Market Rasen, Woodhall Spa

LS Ilkley, Leeds, Otley, Pudsey, Tadcaster, Wetherby

LU Dunstable, Leighton Buzzard, Luton

M Manchester, Sale, Salford

ME Aylesford, Chatham, Faversham, Gillingham (Kent),[Note 23] Maidstone, Queenborough, Rochester, Sheerness, Sittingbourne, Snodland, West Malling

MK Bedford, Buckingham, Milton Keynes, Newport Pagnell (Buckinghamshire),[Note 24] Olney

ML Airdrie, Bellshill, Biggar, Carluke, Coatbridge, Hamilton, Lanark, Larkhall, Motherwell, Shotts, Strathaven, Wishaw

N London[Note 25]

NE Alnwick, Ashington, Bamburgh, Bedlington, Belford, Blaydon-on-Tyne, Blyth, Boldon Colliery, Chathill, Choppington, Corbridge, Cramlington, East Boldon, Gateshead, Haltwhistle, Hebburn, Hexham, Jarrow, Morpeth, Newbiggin-by-the-Sea, Newcastle upon Tyne (Tyne and Wear),[Note 26] North Shields, Prudhoe, Riding Mill, Rowlands Gill, Ryton, Seahouses, South Shields, Stocksfield, Wallsend, Washington, Whitley Bay, Wooler, Wylam

NG Grantham, Mansfield, Newark, Nottingham, Sleaford, Southwell, Sutton-in-Ashfield

NN Brackley, Corby, Daventry, Kettering, Northampton, Rushden, Towcester, Wellingborough

NP Abergavenny, Abertillery, Blackwood, Caldicot, Chepstow, Crickhowell, Cwmbran, Ebbw Vale, Monmouth, New Tredegar, Newport (South Wales),[Note 27] Pontypool, Tredegar, Usk

NR Attleborough, Beccles, Bungay, Cromer, Dereham, Fakenham, Great Yarmouth, Holt, Lowestoft, Melton Constable, North Walsham, Norwich, Sheringham, Walsingham, Wells-next-the-Sea, Wymondham

NW London[Note 28]

OL Ashton-under-Lyne, Bacup, Heywood, Littleborough, Oldham, Rochdale, Todmorden

OX Abingdon, Bampton, Banbury, Bicester, Burford, Carterton, Chinnor, Chipping Norton, Didcot, Kidlington, Oxford, Thame, Wallingford, Wantage, Watlington, Witney, Woodstock

PA Appin, Bishopton, Bridge of Orchy (Argyll),[Note 29] Bridge of Weir (Renfrewshire),[Note 30] Cairndow, Campbeltown, Colintraive, Dalmally, Dunoon, Erskine, Gourock, Greenock, Inveraray, Isle of Bute, Isle of Coll,[Note 31] Isle of Colonsay,[Note 32] Isle of Gigha, Isle of Iona, Isle of Islay, Isle of Jura, Isle of Mull, Isle of Tiree, Johnstone, Kilmacolm, Lochgilphead, Lochwinnoch, Oban, Paisley, Port Glasgow, Renfrew, Skelmorlie, Tarbert, Taynuilt, Tighnabruaich, Wemyss Bay

PE Boston, Bourne, Chatteris, Downham Market, Hunstanton, Huntingdon, King's Lynn, March, Peterborough, Sandringham, Skegness, Spalding, Spilsby, St. Ives (Cambridgeshire),[Note 33] St. Neots, Stamford, Swaffham, Wisbech

PH Aberfeldy, Acharacle, Arisaig, Auchterarder, Aviemore, Ballachulish, Blairgowrie, Boat of Garten, Carrbridge, Corrour, Crieff, Dalwhinnie, Dunkeld, Fort Augustus, Fort William, Glenfinnan, Grantown-on-Spey, Invergarry, Isle of Canna, Isle of Eigg, Isle of Rum, Kingussie, Kinlochleven, Lochailort, Mallaig, Nethy Bridge, Newtonmore, Perth, Pitlochry, Roy Bridge, Spean Bridge

PL Bodmin, Boscastle, Callington, Calstock, Camelford, Delabole, Fowey, Gunnislake, Ivybridge, Launceston, Lifton, Liskeard, Looe, Lostwithiel, Padstow, Par, Plymouth, Port Isaac, Saltash, St. Austell, Tavistock, Tintagel, Torpoint, Wadebridge, Yelverton

PO Bembridge, Bognor Regis, Chichester, Cowes, East Cowes, Emsworth, Fareham, Freshwater, Gosport, Havant, Hayling Island, Lee-on-the-Solent, Newport (Isle of Wight),[Note 34] Portsmouth, Rowland's Castle, Ryde, Sandown, Seaview, Shanklin, Southsea, Totland Bay, Ventnor, Waterlooville, Yarmouth

PR Chorley, Leyland, Preston, Southport

RG Basingstoke, Bracknell, Crowthorne, Henley-on-Thames, Hook, Hungerford, Newbury, Reading, Tadley, Thatcham, Whitchurch (Hampshire),[Note 35] Wokingham

RH Betchworth, Billingshurst, Burgess Hill, Crawley, Dorking, East Grinstead, Forest Row, Gatwick, Godstone, Haywards Heath, Horley, Horsham, Lingfield, Oxted, Pulborough, Redhill, Reigate

RM Dagenham, Grays, Hornchurch, Purfleet, Rainham, Romford, South Ockendon, Tilbury, Upminster

S Barnsley, Chesterfield, Dronfield, Hope Valley, Mexborough, Rotherham, Sheffield, Worksop

SA Aberaeron, Ammanford, Boncath, Burry Port, Cardigan, Carmarthen, Clarbeston Road, Clynderwen, Crymych, Ferryside, Fishguard, Glogue, Goodwick, Haverfordwest, Kidwelly, Kilgetty, Lampeter, Llanarth, Llandeilo, Llandovery, Llandysul, Llanelli, Llanfyrnach, Llangadog, Llanwrda, Llanybydder, Milford Haven, Narberth, Neath, New Quay, Newcastle Emlyn (Carmarthenshire),[Note 36] Newport (Pembrokeshire),[Note 37] Pembroke, Pembroke Dock, Pencader, Port Talbot, Saundersfoot, Swansea, Tenby, Whitland

SE London[Note 38]

SG Arlesey, Baldock, Biggleswade, Buntingford, Henlow, Hertford, Hitchin, Knebworth, Letchworth Garden City, Much Hadham, Royston, Sandy, Shefford, Stevenage, Ware

SK Alderley Edge, Buxton, Cheadle, Dukinfield, Glossop, High Peak, Hyde, Macclesfield, Stalybridge, Stockport, Wilmslow

SL Ascot, Bourne End, Gerrards Cross, Iver, Maidenhead, Marlow, Slough, Windsor

SM Banstead, Carshalton, Morden, Sutton, Wallington

SN Calne, Chippenham, Corsham, Devizes, Faringdon, Malmesbury, Marlborough, Melksham, Pewsey, Swindon

SO Alresford, Brockenhurst, Eastleigh, Lymington, Lyndhurst, Romsey, Southampton, Stockbridge, Winchester

SP Andover, Fordingbridge, Gillingham (Dorset),[Note 39] Salisbury, Shaftesbury, Tidworth

SR Peterlee, Seaham, Sunderland

SS Basildon, Benfleet, Canvey Island, Hockley, Leigh-on-Sea, Rayleigh, Rochford, Southend-on-Sea, Stanford-le-Hope, Westcliff-on-Sea, Wickford

ST Leek, Newcastle (Newcastle-under-Lyme, Staffordshire),[Note 40] Stafford, Stoke-on-Trent, Stone, Uttoxeter

SW London[Note 41]

SY Aberystwyth, Bishops Castle, Borth, Bow Street, Bucknell, Caersws, Church Stretton, Craven Arms, Ellesmere (Shropshire),[Note 42] Llanbrynmair, Llandinam, Llanfechain, Llanfyllin, Llanidloes, Llanon, Llanrhystud, Llansantffraid-ym-Mechain, Llanymynech, Ludlow, Lydbury North, Machynlleth, Malpas, Meifod, Montgomery, Newtown, Oswestry, Shrewsbury, Talybont (Ceredigion),[Note 43] Tregaron, Welshpool, Whitchurch (Shropshire),[Note 44] Ystrad Meurig

TA Bridgwater, Burnham-on-Sea (Somerset),[Note 45] Chard, Crewkerne, Dulverton, Highbridge, Hinton St. George, Ilminster, Langport, Martock, Merriott, Minehead, Montacute, Somerton, South Petherton, Stoke-sub-Hamdon, Taunton, Watchet, Wellington

TD Berwick-upon-Tweed, Cockburnspath, Coldstream, Cornhill-on-Tweed, Duns, Earlston, Eyemouth, Galashiels, Gordon, Hawick, Jedburgh, Kelso, Lauder, Melrose, Mindrum, Newcastleton (Roxburghshire),[Note 46] Selkirk

TF Broseley, Market Drayton, Much Wenlock, Newport (Shropshire) ,Shifnal, Telford

TN Ashford (Kent), Battle, Bexhill-on-Sea, Cranbrook, Crowborough, Edenbridge, Etchingham, Hartfield, Hastings, Heathfield, Mayfield, New Romney, Robertsbridge, Romney Marsh, Rye, Sevenoaks, St. Leonards-on-Sea, Tenterden, Tonbridge, Tunbridge Wells, Uckfield, Wadhurst, Westerham, Winchelsea

TQ Brixham, Buckfastleigh, Dartmouth, Kingsbridge, Newton Abbot, Paignton, Salcombe, South Brent, Teignmouth, Torquay, Totnes

TR Camborne, Falmouth, Hayle, Helston, Isles of Scilly, Marazion, Newquay, Penryn, Penzance, Perranporth, Redruth, St. Agnes, St. Columb, St. Ives (Cornwall),[Note 49] Truro

TS Billingham, Guisborough, Hartlepool, Middlesbrough, Redcar, Saltburn-by-the-Sea, Stockton-on-Tees, Trimdon Station, Wingate, Yarm

TW Ashford (Middlesex),[Note 50] Brentford, Egham, Feltham, Hampton, Hounslow, Isleworth, Richmond (London),[Note 51] Shepperton, Staines-upon-Thames,[Note 52] Sunbury-on-Thames, Teddington, Twickenham

UB Greenford, Hayes, Northolt, Southall, Uxbridge, West Drayton

W London[Note 53]

WA Altrincham, Frodsham, Knutsford, Lymm, Newton-le-Willows, Runcorn, St. Helens, Warrington, Widnes

WC London[Note 54]

WD Abbots Langley, Borehamwood, Bushey, Kings Langley, Radlett, Rickmansworth, Watford

WF Batley, Castleford, Dewsbury, Heckmondwike, Knottingley, Liversedge, Mirfield, Normanton, Ossett, Pontefract, Wakefield

WN Leigh, Skelmersdale, Wigan

WR Broadway, Droitwich, Evesham, Malvern, Pershore, Tenbury Wells, Worcester (Worcestershire)[Note 55]

WS Burntwood, Cannock, Lichfield, Rugeley, Walsall, Wednesbury

WV Bilston, Bridgnorth, Willenhall, Wolverhampton

YO Bridlington, Driffield, Filey, Malton, Pickering, Scarborough, Selby, Thirsk, Whitby, York

ZE Shetland