| Code postal | Nation | Villes postales | Carte |
| AB |  Écosse | Aberdeen, Aberlour, Aboyne, Alford, Ballater, Ballindalloch, Banchory, Banff, Buckie, Ellon, Fraserburgh, Huntly, Insch, Inverurie, Keith, Laurencekirk, Macduff, Milltimber, Peterculter, Peterhead, Stonehaven, Strathdon, Turriff, Westhill |  |
| AL |  Angleterre | Harpenden, Hatfield, St Albans, Welwyn, Welwyn Garden City |  |
| B | Angleterre | Alcester, Birmingham, Bromsgrove, Cradley Heath, Halesowen, Henley-in-Arden, Oldbury, Redditch, Rowley Regis, Smethwick, Solihull, Studley, Sutton Coldfield, Tamworth, West Bromwich |  |
| BA | Angleterre | Bath, Bradford on Avon, Bruton, Castle Cary, Frome, Glastonbury, Radstock, Shepton Mallet, Street, Templecombe, Trowbridge, Warminster, Wells, Westbury, Wincanton, Yeovil |  |
| BB | Angleterre | Accrington, Barnoldswick, Blackburn, Burnley, Clitheroe, Colne, Darwen, Nelson, Rossendale |  |
| BD | Angleterre | Bingley, Bradford, Cleckheaton, Keighley, Settle, Shipley, Skipton |  |
| BH | Angleterre | Bournemouth, Broadstone, Christchurch, Ferndown, New Milton, Poole, Ringwood, Swanage, Verwood, Wareham, Wimborne |  |
| BL | Angleterre | Bolton, Bury |  |
| BN | Angleterre | Arundel, Brighton, Eastbourne, Hailsham, Hassocks, Henfield, Hove, Lancing, Lewes, Littlehampton, Newhaven, Peacehaven, Pevensey, Polegate, Seaford, Shoreham-by-Sea, Steyning, Worthing |  |
| BR | Angleterre | Beckenham, Bromley, Chislehurst, Keston, Orpington, Swanley, West Wickham |  |
| BS | Angleterre | Axbridge, Banwell, Bristol, Cheddar, Clevedon, Wedmore, Weston-super-Mare, Winscombe |  |
| BT | .svg.png.webp) Irlande du Nord | Antrim, Armagh, Augher, Aughnacloy, Ballycastle, Ballyclare, Ballymena, Ballymoney, Ballynahinch, Banbridge, Bangor, Belfast, Bushmills, Caledon, Carrickfergus, Castlederg, Castlewellan, Clogher, Coleraine, Cookstown, Craigavon, Crumlin, Donaghadee, Downpatrick, Dromore, Dungannon, Enniskillen, Fivemiletown, Hillsborough, Holywood, Larne, Limavady, Lisburn, Londonderry (Derry), Maghera, Magherafelt, Newcastle, Newry, Newtownabbey, Newtownards, Omagh, Portrush, Portstewart, Strabane |  |
| CA | Angleterre | Alston, Ambleside, 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 | Angleterre | Cambridge, Ely, Haverhill, Newmarket, Saffron Walden |  |
| CF |  Pays de Galles | 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 | Angleterre et Pays de Galles | Bagillt, Birkenhead, Buckley, Chester, Deeside, Ellesmere Port, Flint, Holywell, Mold, Neston, Prenton, Wallasey, Wirral |  |
| CM | Angleterre | Billericay, Bishop's Stortford, Braintree, Brentwood, Burnham-on-Crouch, Chelmsford, Dunmow, Epping, Harlow, Ingatestone, Maldon, Ongar, Sawbridgeworth, Southminster, Stansted, Witham |  |
| CO | Angleterre | Bures, Clacton-on-Sea, Colchester, Frinton-on-Sea, Halstead, Harwich, Manningtree, Sudbury, Walton-on-the-Naze |  |
| CR | Angleterre | Caterham, Coulsdon, Croydon, Kenley, Mitcham, Purley, South Croydon, Thornton Heath, Warlingham, Whyteleafe |  |
| CT | Angleterre | Birchington, Broadstairs, Canterbury, Deal, Douvres, Folkestone, Herne Bay, Hythe, Margate, Ramsgate, Sandwich, Westgate-on-Sea, Whitstable |  |
| CV | Angleterre | Atherstone, Bedworth, Coventry, Kenilworth, Leamington Spa, Nuneaton, Rugby, Shipston-on-Stour, Southam, Stratford-upon-Avon, Warwick |  |
| CW | Angleterre | Congleton, Crewe, Middlewich, Nantwich, Northwich, Sandbach, Tarporley, Winsford |  |
| DA | Angleterre | Belvedere, Bexley, Bexleyheath, Dartford, Erith, Gravesend, Greenhithe, Longfield, Sidcup, Swanscombe, Welling |  |
| DD | Écosse | Arbroath, Brechin, Carnoustie, Dundee, Forfar, Kirriemuir, Montrose, Newport-on-Tay, Tayport |  |
| DE | Angleterre | Alfreton, Ashbourne, Bakewell, Belper, Burton upon Trent, Derby, Heanor, Ilkeston, Matlock, Ripley, Swadlincote |  |
| DG | Écosse | Annan, Canonbie, Castle Douglas, Dalbeattie, Dumfries, Gretna, Kirkcudbright, Langholm, Lockerbie, Moffat, Newton Stewart, Sanquhar, Stranraer, Thornhill |  |
| DH | Angleterre | Chester le Street, Consett, Durham, Houghton le Spring, Stanley |  |
| DL | Angleterre | Barnard Castle, Bedale, Bishop Auckland, Catterick Garrison, Crook, Darlington, Ferryhill, Hawes, Leyburn, Newton Aycliffe, Northallerton, Richmond, Shildon, Spennymoor |  |
| DN | Angleterre | Barnetby, Barrow upon Humber, Barton-upon-Humber, Brigg, Cleethorpes, Doncaster, Gainsborough, Goole, Grimsby, Immingham, Retford, Scunthorpe, Ulceby | |
| DT | Angleterre | Beaminster, Blandford Forum, Bridport, Dorchester, Lyme Regis, Portland, Sherborne, Sturminster Newton, Weymouth |  |
| DY | Angleterre | Bewdley, Brierley Hill, Dudley, Kidderminster, Kingswinford, Stourbridge, Stourport-on-Severn, Tipton |  |
| E | Angleterre | Londres |  |
| EC | Angleterre | Londres |  |
| EH | Écosse | Balerno, Bathgate, Bo'ness, Bonnyrigg, Broxburn, Currie, Dalkeith, Dunbar, East Linton, Édimbourg, 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 | Angleterre | Barnet, Broxbourne, Enfield, Hoddesdon, Potters Bar, Waltham Abbey, Waltham Cross |  |
| EX | Angleterre | 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 | Écosse | Alloa, Alva, Bonnybridge, Callander, Clackmannan, Crianlarich, Denny, Dollar, Doune, Dunblane, Falkirk, Grangemouth, Killin, Larbert, Lochearnhead, Menstrie, Stirling, Tillicoultry |  |
| FY | Angleterre | Blackpool, Fleetwood, Lytham St Annes, Poulton-Le-Fylde, Thornton-Cleveleys |  |
| G | Écosse | Alexandria, Arrochar, Clydebank, Dumbarton, Glasgow, Helensburgh |  |
| GL | Angleterre et Pays de Galles | 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 | Angleterre | 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 |  Guernesey | Guernesey | |
| HA | Angleterre | Edgware, Harrow, Northwood, Pinner, Ruislip, Stanmore, Wembley |  |
| HD | Angleterre | Brighouse, Holmfirth, Huddersfield |  |
| HG | Angleterre | Harrogate, Knaresborough, Ripon |  |
| HP | Angleterre | Amersham, Aylesbury, Beaconsfield, Berkhamsted, Chalfont St Giles, Chesham, Great Missenden, Hemel Hempstead, High Wycombe, Princes Risborough, Tring |  |
| HR | Angleterre et Pays de Galles | Bromyard, Hereford, Kington, Ledbury, Leominster, Ross-on-Wye |  |
| HS | Écosse | 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 | Angleterre | Beverley, Brough, Cottingham, Hessle, Hornsea, Hull, North Ferriby, Withernsea |  |
| HX | Angleterre | Elland, Halifax, Hebden Bridge, Sowerby Bridge |  |
| IG | Angleterre | Barking, Buckhurst Hill, Chigwell, Ilford, Loughton, Woodford Green |  |
| IM |  Île de Man | Île de Man | |
| IP | Angleterre | Aldeburgh, Brandon, Bury St Edmunds, Diss, Eye, Felixstowe, Halesworth, Harleston, Ipswich, Leiston, Saxmundham, Southwold, Stowmarket, Thetford, Woodbridge |  |
| IV | Écosse | 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 | Jersey |
| KA | Écosse | Ardrossan, Ayr, Beith, Cumnock, Dalry, Darvel, Galston, Girvan, Irvine, Île d'Arran, Île de Cumbrae, Kilbirnie, Kilmarnock, Kilwinning, Largs, Mauchline, Maybole, Newmilns, Prestwick, Saltcoats, Stevenston, Troon, West Kilbride |  |
| KT | Angleterre | Addlestone, Ashtead, Chertsey, Chessington, Cobham, East Molesey, Epsom, Esher, Kingston upon Thames, Leatherhead, New Malden, Surbiton, Tadworth, Thames Ditton, Walton-on-Thames, West Byfleet, West Molesey, Weybridge, Worcester Park |  |
| KW | Écosse | Berriedale, Brora, Dunbeath, Forsinard, Golspie, Halkirk, Helmsdale, Kinbrace, Kirkwall, Latheron, Lybster, Orcades, Stromness, Thurso, Wick |  |
| KY | Écosse | Anstruther, Burntisland, Cowdenbeath, Cupar, Dunfermline, Glenrothes, Inverkeithing, Kelty, Kinross, Kirkcaldy, Leven, Lochgelly, St Andrews |  |
| L | Angleterre | Bootle, Liverpool, Ormskirk, Prescot |  |
| LA | Angleterre | 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 | Angleterre et Pays de Galles | Brecon, Builth Wells, Knighton, Llandrindod Wells, Llangammarch Wells, Llanwrtyd Wells, Presteigne, Rhayader |  |
| LE | Angleterre | Ashby-de-la-Zouch, Coalville, Hinckley, Ibstock, Leicester, Loughborough, Lutterworth, Market Harborough, Markfield, Melton Mowbray, Oakham, Wigston |  |
| LL | Pays de Galles | Aberdovey, Abergele, Amlwch, Arthog, Bala, Bangor, 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, Llandudno Junction, 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, Trefriw, Ty Croes, Tyn-y-Gongl, Tywyn, Wrexham, Y Felinheli |  |
| LN | Angleterre | Alford, Horncastle, Lincoln, Louth, Mablethorpe, Market Rasen, Woodhall Spa |  |
| LS | Angleterre | Ilkley, Leeds, Otley, Pudsey, Tadcaster, Wetherby |  |
| LU | Angleterre | Dunstable, Leighton Buzzard, Luton |  |
| M | Angleterre | Manchester, Sale, Salford |  |
| ME | Angleterre | Aylesford, Chatham, Faversham, Gillingham, Maidstone, Queenborough, Strood, Rochester, Sheerness, Sittingbourne, Snodland, West Malling |  |
| MK | Angleterre | Bedford, Buckingham, Milton Keynes, Newport Pagnell, Olney |  |
| ML | Écosse | Airdrie, Bellshill, Biggar, Carluke, Coatbridge, Hamilton, Lanark, Larkhall, Motherwell, Shotts, Strathaven, Wishaw |  |
| N | Angleterre | Londres |  |
| NE | Angleterre | 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, North Shields, Prudhoe, Riding Mill, Rowlands Gill, Ryton, Seahouses, South Shields, Stocksfield, Wallsend, Washington, Whitley Bay, Wooler, Wylam |  |
| NG | Angleterre | Grantham, Mansfield, Newark-on-Trent, Nottingham, Sleaford, Southwell, Sutton-in-Ashfield |  |
| NN | Angleterre | Brackley, Corby, Daventry, Kettering, Northampton, Rushden, Towcester, Wellingborough |  |
| NP | Pays de Galles | Abergavenny, Abertillery, Blackwood, Caldicot, Chepstow, Crickhowell, Cwmbran, Ebbw Vale, Monmouth, New Tredegar, Newport, Pontypool, Tredegar, Usk |  |
| NR | Angleterre | Attleborough, Beccles, Bungay, Cromer, Dereham, Fakenham, Great Yarmouth, Holt, Lowestoft, Melton Constable, North Walsham, Norwich, Sheringham, Walsingham, Wells-next-the-Sea, Wymondham |  |
| NW | Angleterre | Londres |  |
| OL | Angleterre | Ashton-Under-Lyne, Bacup, Heywood, Littleborough, Oldham, Rochdale, Todmorden |  |
| OX | Angleterre | Abingdon, Bampton, Banbury, Bicester, Burford, Carterton, Chinnor, Chipping Norton, Didcot, Kidlington, Oxford, Thame, Wallingford, Wantage, Watlington, Witney, Woodstock |  |
| PA | Écosse | Appin, Bishopton, Bridge of Orchy, Bridge of Weir, Cairndow, Campbeltown, Colintraive, Dalmally, Dunoon, Erskine, Gourock, Greenock, Inveraray, Île de Bute, Isle of Coll, Isle of Colonsay, Isle of Gigha, Isle of Iona, Isle of Islay, Isle of Jura, Île de Mull, Isle of Tiree, Johnstone, Kilmacolm, Lochgilphead, Lochwinnoch, Oban, Paisley, Port Glasgow, Renfrew, Skelmorlie, Tarbert, Taynuilt, Tighnabruaich, Wemyss Bay |  |
| PE | Angleterre | Boston, Bourne, Chatteris, Downham Market, Hunstanton, Huntingdon, King's Lynn, March, Peterborough, St Ives, St Neots, Sandringham, Skegness, Spalding, Spilsby, Stamford, Swaffham, Wisbech |  |
| PH | Écosse | 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 | Angleterre | 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 | Angleterre | Bembridge, Bognor Regis, Chichester, Cowes, East Cowes, Emsworth, Fareham, Freshwater, Gosport, Havant, Hayling Island, Lee-on-the-Solent, Newport, Portsmouth, Rowland's Castle, Ryde, Sandown, Seaview, Shanklin, Southsea, Totland Bay, Ventnor, Waterlooville, Yarmouth |  |
| PR | Angleterre | Chorley, Leyland, Preston, Southport |  |
| RG | Angleterre | Basingstoke, Bracknell, Crowthorne, Henley-on-Thames, Hook, Hungerford, Newbury, Reading, Tadley, Thatcham, Whitchurch, Wokingham |  |
| RH | Angleterre | Betchworth, Billingshurst, Burgess Hill, Crawley, Dorking, East Grinstead, Forest Row, Gatwick, Godstone, Haywards Heath, Horley, Horsham, Lingfield, Oxted, Pulborough, Redhill, Reigate |  |
| RM | Angleterre | Dagenham, Grays, Hornchurch, Purfleet, Rainham, Romford, South Ockendon, Tilbury, Upminster |  |
| S | Angleterre | Barnsley, Chesterfield, Dronfield, Hope Valley, Mexborough, Rotherham, Sheffield, Worksop |  |
| SA | Pays de Galles | 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, Newport, Pembroke, Pembroke Dock, Pencader, Port Talbot, Saundersfoot, Swansea, Tenby, Whitland |  |
| SE | Angleterre | Londres |  |
| SG | Angleterre | Arlesey, Baldock, Biggleswade, Buntingford, Henlow, Hertford, Hitchin, Knebworth, Letchworth Garden City, Much Hadham, Royston, Sandy, Shefford, Stevenage, Ware |  |
| SK | Angleterre | Alderley Edge, Buxton, Cheadle, Dukinfield, Glossop, High Peak, Hyde, Macclesfield, Stalybridge, Stockport, Wilmslow |  |
| SL | Angleterre | Ascot, Bourne End, Gerrards Cross, Iver, Maidenhead, Marlow, Slough, Windsor |  |
| SM | Angleterre | Banstead, Carshalton, Morden, Sutton, Wallington |  |
| SN | Angleterre | Calne, Chippenham, Corsham, Devizes, Faringdon, Malmesbury, Marlborough, Melksham, Pewsey, Swindon |  |
| SO | Angleterre | Alresford, Brockenhurst, Eastleigh, Lymington, Lyndhurst, Romsey, Southampton, Stockbridge, Winchester |  |
| SP | Angleterre | Andover, Fordingbridge, Gillingham, Salisbury, Shaftesbury, Tidworth |  |
| SR | Angleterre | Peterlee, Seaham, Sunderland |  |
| SS | Angleterre | Basildon, Benfleet, Canvey Island, Hockley, Leigh-on-Sea, Rayleigh, Rochford, Southend-on-Sea, Stanford-le-Hope, Westcliff-on-Sea, Wickford |  |
| ST | Angleterre | Leek, Newcastle, Stafford, Stoke-on-Trent, Stone, Uttoxeter |  |
| SW | Angleterre | Londres |  |
| SY | Angleterre et Pays de Galles | Aberystwyth, Bishop's Castle, Borth, Bow Street, Bucknell, Caersws, Church Stretton, Craven Arms, Ellesmere, Llanbrynmair, Llandinam, Llanfechain, Llanfyllin, Llanidloes, Llanon, Llanrhystud, Llansantffraid, Llanymynech, Ludlow, Lydbury North, Machynlleth, Malpas, Meifod, Montgomery, Newtown, Oswestry, Shrewsbury, Talybont, Tregaron, Welshpool, Whitchurch, Ystrad Meurig |  |
| TA | Angleterre | Bridgwater, Burnham-on-Sea, Chard, Crewkerne, Dulverton, Highbridge, Hinton St George, Ilminster, Langport, Martock, Merriott, Minehead, Montacute, Somerton, South Petherton, Stoke-sub-Hamdon, Taunton, Watchet, Wellington |  |
| TD | Écosse et Angleterre | Berwick-upon-Tweed, Cockburnspath, Coldstream, Cornhill-on-Tweed, Duns, Earlston, Eyemouth, Galashiels, Gordon, Hawick, Jedburgh, Kelso, Lauder, Melrose, Mindrum, Newcastleton, Selkirk |  |
| TF | Angleterre | Broseley, Market Drayton, Much Wenlock, Newport, Shifnal, Telford |  |
| TN | Angleterre | Ashford, 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 | Angleterre | Brixham, Buckfastleigh, Dartmouth, Kingsbridge, Newton Abbot, Paignton, Salcombe, South Brent, Teignmouth, Torquay, Totnes |  |
| TR | Angleterre | Camborne, Falmouth, Hayle, Helston, Isles of Scilly, Marazion, Newquay, Penryn, Penzance, Perranporth, Redruth, St Agnes, St Columb, St Ives, Truro |  |
| TS | Angleterre | Billingham, Guisborough, Hartlepool, Middlesbrough, Redcar, Saltburn-by-the-Sea, Stockton-on-Tees, Trimdon Station, Wingate, Yarm |  |
| TW | Angleterre | Ashford, Brentford, Egham, Feltham, Hampton, Hounslow, Isleworth, Richmond, Shepperton, Staines, Sunbury-on-Thames, Teddington, Twickenham |  |
| UB | Angleterre | Greenford, Hayes, Northolt, Southall, Uxbridge, West Drayton |  |
| W | Angleterre | Londres |  |
| WA | Angleterre | Altrincham, Frodsham, Knutsford, Lymm, Newton-le-Willows, Runcorn, St Helens, Warrington, Widnes |  |
| WC | Angleterre | Londres |  |
| WD | Angleterre | Abbots Langley, Borehamwood, Bushey, Kings Langley, Radlett, Rickmansworth, Watford |  |
| WF | Angleterre | Batley, Castleford, Dewsbury, Heckmondwike, Knottingley, Liversedge, Mirfield, Normanton, Ossett, Pontefract, Wakefield |  |
| WN | Angleterre | Leigh, Skelmersdale, Wigan |  |
| WR | Angleterre | Broadway, Droitwich, Evesham, Malvern, Pershore, Tenbury Wells, Worcester |  |
| WS | Angleterre | Burntwood, Cannock, Lichfield, Rugeley, Walsall, Wednesbury |  |
| WV | Angleterre | Bilston, Bridgnorth, Willenhall, Wolverhampton |  |
| YO | Angleterre | Bridlington, Driffield, Filey, Malton, Pickering, Scarborough, Selby, Thirsk, Whitby, York |  |
| ZE | Écosse | Shetland |  |