| Code | Charging Group |
| | |
| HC 1 | Abingdon |
| HC 2 | Aldershot |
| HC 3 | Alton (Hants.) |
| HC 4 | Ascot (Berks.) |
| HC 5 | Ashford (Kent) |
| HC 6 | Attleborough |
| HC 7 | Aylesbury (Bucks.) |
| HC 8 | Banbury |
| HC 9 | Basingstoke |
| HC 10 | Bedford |
| HC 11 | Bicester |
| HC 12 | Bishops Stortford |
| HC 13 | Braintree |
| HC 14 | Brentwood (Essex) |
| HC 15 | Brighton |
| HC 16 | Brooke |
| HC 17 | Buckingham |
| HC 18 | Bungay |
| HC 19 | Bury-St-Edmunds |
| HC 20 | Cambridge |
| HC 21 | Canterbury |
| HC 22 | Chatham (Kent) aka Medway |
| HC 23 | Chelmsford |
| HC 24 | Chichester |
| HC 25 | Chipping Norton |
| HC 26 | Clacton-on-Sea |
| HC 27 | Colchester |
| HC 28 | Cranbrook |
| HC 29 | Cromer |
| HC 30 | Dereham |
| HC 31 | Diss |
| HC 32 | Docking |
| HC 33 | Dover |
| HC 34 | Downham Market |
| HC 35 | Eastbourne |
| HC 36 | East Grinstead |
| HC 37 | Ely |
| HC 38 | Fakenham (Norfolk) |
| HC 39 | Fareham (Hants) |
| HC 40 | Folkestone |
| HC 41 | Great Dunmow |
| HC 42 | Great Shefford |
| HC 43 | Great Yarmouth |
| HC 44 | Guildford (Surrey) |
| HC 45 | Haslemere |
| HC 46 | Hastings |
| HC 47 | Haverhill |
| HC 48 | Haywards Heath |
| HC 49 | Heathfield |
| HC 50 | High Wycombe |
| HC 51 | Hitchin (Herts.) |
| HC 52 | Horsham (Sussex) |
| HC 53 | Ipswich |
| HC 54 | Iver |
| HC 55 | Kings Lynn |
| HC 56 | Knebworth |
| HC 57 | Leighton Buzzard |
| HC 58 | Lowestoft |
| HC 59 | Markyate (Herts.) |
| HC 60 | Madingley |
| HC 61 | Maidenhead |
| HC 62 | Maidstone |
| HC 63 | Maldon (Essex) |
| HC 64 | Nettlebed |
| HC 65 | Newbury (Berks.) |
| HC 66 | Newdigate |
| HC 67 | Newmarket |
| HC 68 | North Walsham |
| HC 69 | Norwich |
| HC 70 | Oxford |
| HC 71 | Pakenham (Suffolk) |
| HC 72 | Petersfield (Hants.) |
| HC 73 | Portsmouth |
| HC 74 | Pulborough (Horsham) |
| HC 75 | Reading |
| HC 76 | Royston (Herts.) |
| HC 77 | Ryde |
| HC 78 | Rye (Hastings) |
| HC 79 | Saffron Walden |
| HC 80 | Sandy (Beds.) |
| HC 81 | Saxmundham |
| HC 82 | Sevenoaks |
| HC 83 | Shottisham |
| HC 84 | Sittingbourne |
| HC 85 | Southend-on-Sea |
| HC 86 | Stowmarket |
| HC 87 | Sudbury (Suffolk) |
| HC 88 | Swaffham |
| HC 89 | Thame (Oxon.) |
| HC 90 | Thanet |
| HC 91 | Thetford |
| HC 92 | Tunbridge Wells |
| HC 93 | Uckfield |
| HC 94 | Witney |
| HC 95 | Wolverton (Bucks.) |
| HC 96 | Worthing |
| | |
| L 1 | Colney Heath |
| L 2 | Esher |
| L 3 | Gravesend |
| L 4 | Hoddesdon |
| L 5 | London Inner Area |
| L 6 | Merstham |
| L 7 | Romford |
| L 8 | Stanford-le-Hope |
| L 9 | Swanley |
| L 10 | Watford (Herts.) |
| | |
| M 1 | Ashbourne |
| M 2 | Bewdley |
| M 3 | Birmingham |
| M 4 | Boston (Lincs.) |
| M 5 | Bourne |
| M 6 | Bridgnorth |
| M 7 | Burton-on-Trent |
| M 8 | Clopton (Northants.) |
| M 9 | Coalville |
| M 10 | Coventry |
| M 11 | Crewe |
| M 12 | Dapple Heath |
| M 13 | Derby |
| M 14 | Doddington (Cambs.) |
| M 15 | Evesham |
| M 16 | Grantham (Lincs.) |
| M 17 | Hanley Swan |
| M 18 | Hinckley |
| M 19 | Holbeach |
| M 20 | Honington (Lincs.) |
| M 21 | Huntingdon |
| M 22 | Ipstones |
| M 23 | Kettering |
| M 24 | Lapworth |
| M 25 | Leamington Spa |
| M 26 | Leicester |
| M 27 | Loughborough |
| M 28 | Mansfield |
| M 29 | Market Harborough |
| M 30 | Matlock |
| M 31 | Melton Mowbray |
| M 32 | Meriden |
| M 33 | Newark |
| M 34 | Northampton |
| M 35 | Nottingham |
| M 36 | Oakham |
| M 37 | Peterborough |
| M 38 | Redditch |
| M 39 | Ripley (Derby) |
| M 40 | Rugby |
| M 41 | Skegness |
| M 42 | Sleaford |
| M 43 | Spalding |
| M 44 | Stafford |
| M 45 | Stamford |
| M 46 | Stoke-on-Trent |
| M 47 | Stourbridge |
| M 48 | Stratford-upon-Avon |
| M 49 | Tamworth |
| M 50 | Burntwood |
| M 51 | Warboys |
| M 52 | Weedon (Northants.) |
| M 53 | Wellingborough |
| M 54 | Whatton |
| M 55 | Wisbech |
| M 56 | Wolverhampton |
| M 57 | Worcester |
| | |
|
| Code | Charging Group |
| | |
| NE 1 | Alford (Lincs.) |
| NE 2 | Alnwick |
| NE 3 | Barnard Castle |
| NE 4 | Barnsley (Yorks.) |
| NE 5 | Bedale |
| NE 6 | Belford |
| NE 7 | Bellingham (Northumberland) |
| NE 8 | Berwick-upon-Tweed |
| NE 9 | Bishop Auckland |
| NE 10 | Boroughbridge (Yorks.) |
| NE 11 | Bradford (Yorks.) |
| NE 12 | Bridlington |
| NE 13 | Brigg |
| NE 14 | Chesterfield |
| NE 15 | Consett |
| NE 16 | Darlington |
| NE 17 | Doncaster |
| NE 18 | Driffield |
| NE 19 | Durham |
| NE 20 | Easingwold |
| NE 21 | Gainsborough |
| NE 22 | Goole |
| NE 23 | Grimsby |
| NE 24 | Guisborough |
| NE 25 | Guiseley |
| NE 26 | Halifax |
| NE 27 | Haltwhistle |
| NE 28 | Harrogate |
| NE 29 | Hartlepools |
| NE 30 | Hathersage |
| NE 31 | Helmsley |
| NE 32 | Hexham |
| NE 33 | Huddersfield |
| NE 34 | Hull |
| NE 35 | Keighley |
| NE 36 | Killingholme |
| NE 37 | Kirkwhelpington |
| NE 38 | Leeds |
| NE 39 | Leyburn |
| NE 40 | Lincoln |
| NE 41 | Louth (Lincs.) |
| NE 42 | Malton |
| NE 43 | Market Rasen |
| NE 44 | Market Weighton |
| NE 45 | Martin |
| NE 46 | Middlesborough |
| NE 47 | Morpeth |
| NE 48 | Newcastle upon Tyne |
| NE 49 | Northallerton |
| NE 50 | North Cave |
| NE 51 | Patrington |
| NE 52 | Pickering |
| NE 53 | Pocklington |
| NE 54 | Pontefract |
| NE 55 | Retford |
| NE 56 | Richmond (Yorks.) |
| NE 57 | Ripon |
| NE 58 | Rothbury |
| NE 59 | Rotherham |
| NE 60 | Scarborough |
| NE 61 | Scunthorpe |
| NE 62 | Sedgefield |
| NE 63 | Selby |
| NE 64 | Settle |
| NE 65 | Sheffield |
| NE 66 | Sigglesthorne aka Hornsea |
| NE 67 | Skipton |
| NE 68 | Spilsby |
| NE 69 | Stanhope (Weardale) |
| NE 70 | Sunderland aka Wearside |
| NE 71 | Thirsk |
| NE 72 | Wakefield |
| NE 73 | West Heslerton |
| NE 74 | Wetherby |
| NE 75 | Whitby (Yorks.) |
| NE 76 | Worksop |
| NE 77 | Wylam |
| NE 78 | York |
| | |
| NI 1 | Antrim |
| NI 2 | Armagh |
| NI 3 | Ballycastle (Co. Antrim) |
| NI 4 | Ballyclare |
| NI 5 | Ballygawley |
| NI 6 | Ballymena |
| NI 7 | Ballymoney |
| NI 8 | Banbridge |
| NI 9 | Belfast |
| NI 10 | Carrickmore |
| NI 11 | Coleraine |
| NI 12 | Cookstown |
| NI 13 | Downpatrick |
| NI 14 | Dungannon |
| NI 15 | Enniskillen |
| NI 16 | Fivemiletown |
| NI 17 | Kesh |
| NI 18 | Kilrea |
| NI 19 | Kircubbin |
| NI 20 | Larne |
| NI 21 | Limavady |
| NI 22 | Lisburn |
| NI 23 | Lisnaskea |
| NI 24 | Londonderry |
| NI 25 | Magherafelt |
| NI 26 | Martinstown (Co. Antrim) |
| NI 27 | Newcastle (Co. Down) |
| NI 28 | Newry |
| NI 29 | Bangor (Co. Down) |
| NI 30 | Newtownstewart (Co. Tyrone) |
| NI 31 | Omagh |
| NI 32 | Portadown |
| NI 33 | Rostrevor |
| NI 34 | Saintfield |
| | |
| NW 1 | Appleby (Westmorland) |
| NW 2 | Barrow-in-Furness |
| NW 3 | Blackburn (Lancs.) |
| NW 4 | Blackpool |
| NW 5 | Bolton |
| NW 6 | Brampton (Cumberland) |
| NW 7 | Burnley |
| NW 8 | Buxton (Derbys.) |
| NW 9 | Carlisle |
| NW 10 | Clitheroe |
| NW 11 | Congleton |
| NW 12 | Coppull |
| NW 13 | Douglas (I. of Man) |
| NW 14 | Frodsham |
| NW 15 | Garstang |
| NW 16 | Glossop |
| NW 17 | Gosforth (Cumberland) |
| NW 18 | Grange-over-Sands |
| NW 19 | Hawkshead |
| NW 20 | Hornby |
| NW 21 | Kendal |
| NW 22 | Keswick |
| NW 23 | Knutsford |
| NW 24 | Lancaster |
| NW 25 | Liverpool |
| NW 26 | Macclesfield |
| NW 27 | Manchester |
| NW 28 | Millom |
| NW 29 | New Mills (Derbys.) |
| NW 30 | Northwich |
| NW 31 | Penrith |
| NW 32 | Pooley Bridge |
| NW 33 | Preston (Lancs.) |
| NW 34 | Rainford |
| NW 35 | Raughton Head |
| NW 36 | Rochdale |
| NW 37 | Sedbergh |
| NW 38 | Shap |
| NW 39 | Southport |
| NW 40 | Warrington (Lancs.) |
| NW 41 | Whitehaven |
| NW 42 | Wigan |
| NW 43 | Wigton (Cumberland) |
| NW 44 | Workington |
| | |
|
| Code | Charging Group |
| | |
| SC 1 | Aberdeen |
| SC 2 | Aberfeldy |
| SC 3 | Abington (Lanarks.) |
| SC 4 | Aboyne |
| SC 5 | Alford (Aberdeen) |
| SC 6 | Alloa |
| SC 7 | Annan |
| SC 8 | Arbroath |
| SC 9 | Ardgay |
| SC 10 | Ardrossan-Saltcoats |
| SC 11 | Arrochar |
| SC 12 | Ayr |
| SC 13 | Ayton |
| SC 14 | Ballachulish |
| SC 15 | Ballater |
| SC 16 | Ballindalloch |
| SC 17 | Banchory |
| SC 18 | Banff |
| SC 19 | Bathgate |
| SC 20 | Benbecula |
| SC 21 | Biggar |
| SC 22 | Blairgowrie |
| SC 23 | Brechin (Angus) |
| SC 24 | Broadford (I. of Skye) |
| SC 25 | Brodick |
| SC 26 | Campbeltown |
| SC 27 | Carradale |
| SC 28 | Castlebay |
| SC 29 | Castle Douglas |
| SC 30 | Coatbridge |
| SC 31 | Coldstream |
| SC 32 | Colonsay |
| SC 33 | Coupar Angus |
| SC 34 | Craigellachie |
| SC 35 | Craignure |
| SC 36 | Crieff |
| SC 37 | Cumnock |
| SC 38 | Dalmally |
| SC 39 | Dingwall |
| SC 40 | Dumbarton |
| SC 41 | Dumfries |
| SC 42 | Dunbar |
| SC 43 | Dundee |
| SC 44 | Dunfermline |
| SC 45 | Dunkeld |
| SC 46 | Dunoon |
| SC 47 | Duns |
| SC 48 | East Kilbride |
| SC 49 | Edinbane |
| SC 50 | Edinburgh |
| SC 51 | Eigg |
| SC 52 | Elgin |
| SC 53 | Ellon |
| SC 54 | Fair Isle |
| SC 55 | Falkirk |
| SC 56 | Fionnphort |
| SC 57 | Fordoun |
| SC 58 | Forfar |
| SC 59 | Forres |
| SC 60 | Fort Augustus |
| SC 61 | Fortrose |
| SC 62 | Fort William |
| SC 63 | Foula |
| SC 64 | Fraserburgh |
| SC 65 | Gairloch |
| SC 66 | Galashiels |
| SC 67 | Girvan |
| SC 68 | Glasgow |
| SC 69 | Glenurquhart |
| SC 70 | Golspie |
| SC 71 | Grantown-on-Spey |
| SC 72 | Great Bernera |
| SC 73 | Greenock |
| SC 74 | Harris (I. of Lewis) |
| SC 75 | Harthill (Lanarks.) |
| SC 76 | Hawick |
| SC 77 | Helensburgh |
| SC 78 | Helmsdale |
| SC 79 | Huntly |
| SC 80 | Insch |
| SC 81 | Inveraray (Argyll) |
| SC 82 | Inverness |
| SC 83 | Inverurie (Aberdeen) |
| SC 84 | Johnstone |
| SC 85 | Keith |
| SC 86 | Kelso |
| SC 87 | Kilchrenan (Argyll) |
| SC 88 | Killearn |
| SC 89 | Killin |
| SC 90 | Kilmarnock |
| SC 91 | Kilmelford |
| SC 92 | Kingussie |
| SC 93 | Kinloch Rannoch |
| SC 94 | Kinross |
| SC 95 | Kirkcaldy |
| SC 96 | Kirkcudbright |
| SC 97 | Kirkwall |
| SC 98 | Kirriemuir |
| SC 99 | Kyle (Ross-shire) |
| SC 100 | Ladybank |
| SC 101 | Laggan |
| SC 102 | Lairg |
| SC 103 | Lanark |
| SC 104 | Langholm |
| SC 105 | Lauder |
| SC 106 | Lerwick |
| SC 107 | Lochboisdale |
| SC 108 | Lochcarron |
| SC 109 | Lochgilphead |
| SC 110 | Lochinver |
| SC 111 | Lochmaddy |
| SC 112 | Lockerbie |
| SC 113 | Lybster |
| SC 114 | Mallaig |
| SC 115 | Maud |
| SC 116 | Maybole |
| SC 117 | Mid Yell |
| SC 118 | Moffat |
| SC 119 | Montrose |
| SC 120 | Moscow |
| SC 121 | Motherwell |
| SC 122 | Nairn |
| SC 123 | New Galloway |
| SC 124 | New Luce |
| SC 125 | Newton Stewart (Wigtownshire) |
| SC 126 | North Berwick |
| SC 127 | Oban |
| SC 128 | Oldmeldrum |
| SC 129 | Peat Inn |
| SC 130 | Peebles |
| SC 131 | Penicuik |
| SC 132 | Perth |
| SC 133 | Peterhead |
| SC 134 | Pitlochry |
| SC 135 | Port Ellen |
| SC 136 | Portree (I. of Skye) |
| SC 137 | Rothesay |
| SC 138 | St Boswells |
| SC 139 | Salen aka Glenborrodale |
| SC 140 | Sanday |
| SC 141 | Sandwick (Shetland) |
| SC 142 | Sanquhar |
| SC 143 | Scarinish |
| SC 144 | Scourie |
| SC 145 | Selkirk |
| SC 146 | Stirling |
| SC 147 | Stonehaven |
| SC 148 | Stornoway |
| SC 149 | Stranraer |
| SC 150 | Strathdon |
| SC 151 | Strathpeffer |
| SC 152 | Strathy |
| SC 153 | Strontian |
| SC 154 | Tain |
| SC 155 | Tarbert (Argyllshire) |
| SC 156 | Thornhill (Dumfries) |
| SC 157 | Thurso |
| SC 158 | Tobermory |
| SC 159 | Tomatin |
| SC 160 | Tomdoun |
| SC 161 | Tongue |
| SC 162 | Tranent |
| SC 163 | Trossachs |
| SC 164 | Turriff |
| SC 165 | Ullapool |
| SC 166 | Voe |
| SC 167 | Wick (Caithness) |
| SC 168 | Wigtown |
| | |
|
| Code | Charging Group |
| | |
| SW 1 | Andover |
| SW 2 | Ashburton |
| SW 3 | Axminster |
| SW 4 | Barnstable |
| SW 5 | Bath |
| SW 6 | Bideford |
| SW 7 | Blandford |
| SW 8 | Bodmin |
| SW 9 | Bournemouth |
| SW 10 | Bourton-on-the-Water |
| SW 11 | Brayford |
| SW 12 | Bridgwater |
| SW 13 | Bridport |
| SW 14 | Bristol |
| SW 15 | Bude |
| SW 16 | Budleigh Salterton |
| SW 17 | Bulford Camp |
| SW 18 | Burley (Hants.) |
| SW 19 | Camelford |
| SW 20 | Cerne Abbas |
| SW 21 | Chard |
| SW 22 | Cheltenham |
| SW 23 | Chippenham (Wilts.) |
| SW 24 | Cirencester |
| SW 25 | Crediton |
| SW 26 | Devizes |
| SW 27 | Dorchester (Dorset) |
| SW 28 | Dulverton |
| SW 29 | Dursley |
| SW 30 | Exeter |
| SW 31 | Falmouth |
| SW 32 | Faringdon |
| SW 33 | Frome |
| SW 34 | Glastonbury |
| SW 35 | Gloucester |
| SW 36 | Guernsey |
| SW 37 | Holsworthy |
| SW 38 | Honiton |
| SW 39 | Jersey |
| SW 40 | Kingsbridge |
| SW 41 | Launceston |
| SW 42 | Liskeard |
| SW 43 | Looe |
| SW 44 | Lydney |
| SW 45 | Lymington (Hants.) |
| SW 46 | Malmesbury |
| SW 47 | Marlborough |
| SW 48 | Minehead (Somerset) |
| SW 49 | Moretonhampstead |
| SW 50 | Newton Abbot |
| SW 51 | Newquay |
| SW 52 | Okehampton |
| SW 53 | Penzance |
| SW 54 | Plymouth |
| SW 55 | Rangeworthy |
| SW 56 | Redruth |
| SW 57 | Rockbourne |
| SW 58 | Romsey (Hants.) |
| SW 59 | St Austell |
| SW 60 | Salisbury |
| SW 61 | Scillonia |
| SW 62 | Shaftesbury |
| SW 63 | Shepton Mallet |
| SW 64 | Southampton |
| SW 65 | South Molton |
| SW 66 | Stogumber |
| SW 67 | Swindon |
| SW 68 | Taunton |
| SW 69 | Tavistock |
| SW 70 | Temple Cloud |
| SW 71 | Templecombe |
| SW 72 | Tiverton |
| SW 73 | Torquay |
| SW 74 | Torrington |
| SW 75 | Truro |
| SW 76 | Wareham |
| SW 77 | Warminster |
| SW 78 | Weston-super-Mare |
| SW 79 | Winchester |
| SW 80 | Yeovil |
| | |
| WB 1 | Aberangell aka Cemmaes Road |
| WB 2 | Abergavenny |
| WB 3 | Aberystwth |
| WB 4 | Ammanford |
| WB 5 | Bala |
| WB 6 | Bangor (N. Wales) |
| WB 7 | Barmouth |
| WB 8 | Barry |
| WB 9 | Betws-y-Coed |
| WB 10 | Brecon (Wales) |
| WB 11 | Bridgend (Glam.) |
| WB 12 | Bromyard |
| WB 13 | Builth Wells |
| WB 14 | Caernarfon (N. Wales) |
| WB 15 | Cardiff |
| WB 16 | Cardigan |
| WB 17 | Carmarthen (S. Wales) |
| WB 18 | Chester |
| WB 19 | Church Stretton |
| WB 20 | Clynderwen |
| WB 21 | Colwyn Bay |
| WB 22 | Corwen |
| WB 23 | Craven Arms |
| WB 24 | Fishguard |
| WB 25 | Haverfordwest |
| WB 26 | Hay-on-Wye |
| WB 27 | Hereford |
| WB 28 | Holyhead |
| WB 29 | Kington |
| WB 30 | Knighton (Radnor) |
| WB 31 | Lampeter |
| WB 32 | Ledbury |
| WB 33 | Leominster |
| WB 34 | Llanarth |
| WB 35 | Llandeilo |
| WB 36 | Llandovery |
| WB 37 | Llandrindod Wells |
| WB 38 | Llandyssul |
| WB 39 | Llanelli |
| WB 40 | Llanidloes |
| WB 41 | Llanon |
| WB 42 | Llanwrtyd Wells |
| WB 43 | Ludlow |
| WB 44 | Machynlleth |
| WB 45 | Market Drayton |
| WB 46 | Merthyr Tydfil |
| WB 47 | Milford Haven |
| WB 48 | Mold |
| WB 49 | Monmouth |
| WB 50 | Narberth |
| WB 51 | Neath |
| WB 52 | Newport (Mon.) |
| WB 53 | Newtown (Powys) |
| WB 54 | Oswestry |
| WB 55 | Pontypool |
| WB 56 | Pontypridd |
| WB 57 | Porthmadog |
| WB 58 | Pwllheli |
| WB 59 | Rhyl |
| WB 60 | Ross-on-Wye |
| WB 61 | Ruthin |
| WB 62 | St Clears |
| WB 63 | Shirenewton |
| WB 64 | Shrewsbury |
| WB 65 | Swansea |
| WB 66 | Tarporley |
| WB 67 | Wellington (Salop.) |
| WB 68 | Welshpool |
| WB 69 | Wem |
| WB 70 | Whitchurch (Salop.) |
| WB 71 | Wormbridge |
| WB 72 | Wrexham |
| | |
|