| -8 | Not coded (before 19930101) |
| 01AA | Greater London; City of London LB |
| 01AB | Greater London; Barking and Dagenham LB |
| 01AC | Greater London; Barnet LB |
| 01AD | Greater London; Bexley LB |
| 01AE | Greater London; Brent LB |
| 01AF | Greater London; Bromley LB |
| 01AG | Greater London; Camden LB |
| 01AH | Greater London; Croydon LB |
| 01AJ | Greater London; Ealing LB |
| 01AK | Greater London; Enfield LB |
| 01AL | Greater London; Greenwich LB |
| 01AM | Greater London; Hackney LB |
| 01AN | Greater London; Hammersmith and Fulham LB |
| 01AP | Greater London; Haringey LB |
| 01AQ | Greater London; Harrow LB |
| 01AR | Greater London; Havering LB |
| 01AS | Greater London; Hillingdon LB |
| 01AT | Greater London; Hounslow LB |
| 01AU | Greater London; Islington LB |
| 01AW | Greater London; Kensington and Chelsea LB |
| 01AX | Greater London; Kingston Upon Thames LB |
| 01AY | Greater London; Lambeth LB |
| 01AZ | Greater London; Lewisham LB |
| 01BA | Greater London; Merton LB |
| 01BB | Greater London; Newham LB |
| 01BC | Greater London; Redbridge LB |
| 01BD | Greater London; Richmond Upon Thames LB |
| 01BE | Greater London; Southwark LB |
| 01BF | Greater London; Sutton LB |
| 01BG | Greater London; Tower Hamlets LB |
| 01BH | Greater London; Waltham Forest LB |
| 01BJ | Greater London; Wandsworth LB |
| 01BK | Greater London; Westminister LB |
| 02BL | Greater Manchester; Bolton MD |
| 02BM | Greater Manchester; Bury MD |
| 02BN | Greater Manchester; Manchester MD |
| 02BP | Greater Manchester; Oldham MD |
| 02BQ | Greater Manchester; Rochdale MD |
| 02BR | Greater Manchester; Salford MD |
| 02BS | Greater Manchester; Stockport MD |
| 02BT | Greater Manchester; Tameside MD |
| 02BU | Greater Manchester; Trafford MD |
| 02BW | Greater Manchester; Wigan MD |
| 03BX | Merseyside; Knowsley MD |
| 03BY | Merseyside; Liverpool MD |
| 03BZ | Merseyside; St Helens MD |
| 03CA | Merseyside; Sefton MD |
| 03CB | Merseyside; Wirral MD |
| 04CC | South Yorkshire; Barnsley MD |
| 04CE | South Yorkshire; Doncaster MD |
| 04CF | South Yorkshire; Rotherham MD |
| 04CG | South Yorkshire; Sheffield MD |
| 05CH | Tyne and Wear; Gateshead MD |
| 05CJ | Tyne and Wear; Newcastle upon Tyne MD |
| 05CK | Tyne and Wear; North Tyneside MD |
| 05CL | Tyne and Wear; South Tyneside MD |
| 05CM | Tyne and Wear; Sunderland MD |
| 06CN | West Midlands; Birmingham MD |
| 06CQ | West Midlands; Coventry MD |
| 06CR | West Midlands; Dudley MD |
| 06CS | West Midlands; Sandwell MD |
| 06CT | West Midlands; Solihull MD |
| 06CU | West Midlands; Walsall MD |
| 06CW | West Midlands; Wolverhampton MD |
| 07CX | West Yorkshire; Bradford MD |
| 07CY | West Yorkshire; Calderdale MD |
| 07CZ | West Yorkshire; Kirklees MD |
| 07DA | West Yorkshire; Leeds MD |
| 07DB | West Yorkshire; Wakefield MD |
| 08UB | Avon; Bath CD |
| 08UC | Avon; Bristol CD |
| 08UD | Avon; Kingswood CD |
| 08UE | Avon; Northavon CD |
| 08UF | Avon; Wansdyke CD |
| 08UG | Avon; Woodspring CD |
| 09UB | Bedfordshire; Luton CD |
| 09UC | Bedfordshire; Mid Befordshire CD |
| 09UD | Bedfordshire; North Bedfordshire CD |
| 09UE | Bedfordshire; South Bedfordshire CD |
| 10UB | Berkshire; Bracknell Forest CD |
| 10UC | Berkshire; Newbury CD |
| 10UD | Berkshire; Reading CD |
| 10UE | Berkshire; Slough CD |
| 10UF | Berkshire; Windsor and Maidenhead CD |
| 10UG | Berkshire; Wokingham CD |
| 11UB | Buckinghamshire; Aylesbury Vale CD |
| 11UC | Buckinghamshire; Chiltern CD |
| 11UD | Buckinghamshire; Milton Keynes CD |
| 11UE | Buckinghamshire; South Bucks CD |
| 11UF | Buckinghamshire; Wycombe CD |
| 12UB | Cambridgeshire; Cambridge CD |
| 12UC | Cambridgeshire; East Cambridgeshire CD |
| 12UD | Cambridgeshire; Fenland CD |
| 12UE | Cambridgeshire; Huntingdonshire CD |
| 12UF | Cambridgeshire; Peterborough CD |
| 12UG | Cambridgeshire; South Cambridgeshire CD |
| 13UB | Cheshire; Chester CD |
| 13UC | Cheshire; Congleton CD |
| 13UD | Cheshire; Crewe and Nantwich CD |
| 13UE | Cheshire; Ellesmere Port and Neston CD |
| 13UF | Cheshire; Halton CD |
| 13UG | Cheshire; Macclesfield CD |
| 13UH | Cheshire; Vale Royal CD |
| 13UJ | Cheshire; Warrington CD |
| 14UB | Cleveland; Hartlepool CD |
| 14UC | Cleveland; Langbaurgh-on-Tees CD |
| 14UD | Cleveland; Middlesbrough CD |
| 14UE | Cleveland; Stockton-on-Tees CD |
| 15UB | Cornwall; Caradon CD |
| 15UC | Cornwall; Carrick CD |
| 15UD | Cornwall; Kerrier CD |
| 15UE | Cornwall; North Cornwall CD |
| 15UF | Cornwall; Penwith CD |
| 15UG | Cornwall; Restormel CD |
| 15UH | Cornwall; Scilly, Isle of CD |
| 16UB | Cumbria; Allerdale CD |
| 16UC | Cumbria; Barrow-in-Furness CD |
| 16UD | Cumbria; Carlisle CD |
| 16UE | Cumbria; Copeland CD |
| 16UF | Cumbria; Eden CD |
| 16UG | Cumbria; South Lakeland CD |
| 17UB | Derbyshire; Amber Valley CD |
| 17UC | Derbyshire; Bolsover CD |
| 17UD | Derbyshire; Chesterfield CD |
| 17UE | Derbyshire; Derby CD |
| 17UF | Derbyshire; Derbyshire Dales CD |
| 17UG | Derbyshire; Erewash CD |
| 17UH | Derbyshire; High Peak CD |
| 17UJ | Derbyshire; North East Derbyshire CD |
| 17UK | Derbyshire; South Derbyshire CD |
| 18UB | Devon; East Devon CD |
| 18UC | Devon; Exeter CD |
| 18UD | Devon; Mid Devon CD |
| 18UE | Devon; North Devon CD |
| 18UF | Devon; Plymouth CD |
| 18UG | Devon; South Hams CD |
| 18UH | Devon; Teignbridge CD |
| 18UJ | Devon; Torbay CD |
| 18UK | Devon; Torridge CD |
| 18UL | Devon; West Devon CD |
| 19UB | Dorset; Bournemouth CD |
| 19UC | Dorset; Christchurch CD |
| 19UD | Dorset; East Dorset CD |
| 19UE | Dorset; North Dorset CD |
| 19UF | Dorset; Poole CD |
| 19UG | Dorset; Purbeck CD |
| 19UH | Dorset; West Dorset CD |
| 19UI | Dorset; Weymouth and Portland CD |
| 20UB | Durham; Chester-le-Street CD |
| 20UC | Durham; Darlington CD |
| 20UD | Durham; Derwentside CD |
| 20UE | Durham; Durham CD |
| 20UF | Durham; Easington CD |
| 20UG | Durham; Sedgefield CD |
| 20UH | Durham; Teesdale CD |
| 20UI | Durham; Wear Valley CD |
| 21UB | East Sussex; Brighton CD |
| 21UC | East Sussex; Eastbourne CD |
| 21UD | East Sussex; Hastings CD |
| 21UE | East Sussex; Hove CD |
| 21UF | East Sussex; Lewes CD |
| 21UG | East Sussex; Rother CD |
| 21UH | East Sussex; Wealdon CD |
| 22UB | Essex; Basildon CD |
| 22UC | Essex; Braintree CD |
| 22UD | Essex; Brentwood CD |
| 22UE | Essex; Castle Point CD |
| 22UF | Essex; Chelmsford CD |
| 22UG | Essex; Colchester CD |
| 22UH | Essex; Epping Forest CD |
| 22UJ | Essex; Harlow CD |
| 22UK | Essex; Maldon CD |
| 22UL | Essex; Rochford CD |
| 22UM | Essex; Southend-on-Sea CD |
| 22UN | Essex; Tendring CD |
| 22UO | Essex; Thurrock CD |
| 22UP | Essex; Uttlesford CD |
| 23UB | Gloucestershire; Cheltenham CD |
| 23UC | Gloucestershire; Cotswold CD |
| 23UD | Gloucestershire; Forest of Dean CD |
| 23UE | Gloucestershire; Gloucester CD |
| 23UF | Gloucestershire; Stroud CD |
| 23UG | Gloucestershire; Tewkesbury CD |
| 24UB | Hampshire; Basingstoke and Deane CD |
| 24UC | Hampshire; East Hampshire CD |
| 24UD | Hampshire; Eastleigh CD |
| 24UE | Hampshire; Fareham CD |
| 24UF | Hampshire; Gosport CD |
| 24UG | Hampshire; Hart CD |
| 24UH | Hampshire; Havant CD |
| 24UJ | Hampshire; New Forest CD |
| 24UK | Hampshire; Portsmouth CD |
| 24UL | Hampshire; Rushmoor CD |
| 24UM | Hampshire; Southampton CD |
| 24UN | Hampshire; Test Valley CD |
| 24UP | Hampshire; Winchester CD |
| 25UB | Hereford and Worcester; Bromsgrove CD |
| 25UC | Hereford and Worcester; Hereford CD |
| 25UD | Hereford and Worcester; Leominster CD |
| 25UE | Hereford and Worcester; Malvern Hills CD |
| 25UF | Hereford and Worcester; Redditch CD |
| 25UG | Hereford and Worcester; South Herefordshire CD |
| 25UH | Hereford and Worcester; Worcester CD |
| 25UJ | Hereford and Worcester; Wychavon CD |
| 25UK | Hereford and Worcester; Wyre Forest CD |
| 26UB | Hertfordshire; Broxbourne CD |
| 26UC | Hertfordshire; Dacorum CD |
| 26UD | Hertfordshire; East Hertfordshire CD |
| 26UE | Hertfordshire; Hertsmere CD |
| 26UF | Hertfordshire; North Hertfordshire CD |
| 26UG | Hertfordshire; St Albans CD |
| 26UH | Hertfordshire; Stevenage CD |
| 26UJ | Hertfordshire; Three Rivers CD |
| 26UK | Hertfordshire; Watford CD |
| 26UL | Hertfordshire; Welwyn Hatfield CD |
| 27UB | Humberside; Boothferry CD |
| 27UC | Humberside; Cleethorpes CD |
| 27UD | Humberside; East Yorkshire CD |
| 27UE | Humberside; East Yorkshire Borough of Beverley CD |
| 27UF | Humberside; Glanford CD |
| 27UG | Humberside; Great Grimsby CD |
| 27UH | Humberside; Holderness CD |
| 27UJ | Humberside; Kingston upon Hull CD |
| 27UK | Humberside; Scunthorpe CD |
| 28UB | Isle of Wight; Medina CD |
| 28UC | Isle of Wight; South Wight CD |
| 29UB | Kent; Ashford CD |
| 29UC | Kent; Canterbury CD |
| 29UD | Kent; Dartford CD |
| 29UE | Kent; Dover CD |
| 29UF | Kent; Gillingham CD |
| 29UG | Kent; Gravesham CD |
| 29UH | Kent; Maidstone CD |
| 29UJ | Kent; Rochester upon Medway CD |
| 29UK | Kent; Sevenoaks CD |
| 29UL | Kent; Shepway CD |
| 29UM | Kent; Swale CD |
| 29UN | Kent; Thanet CD |
| 29UP | Kent; Tonbridge and Malling CD |
| 29UQ | Kent; Tunbridge Wells CD |
| 30UB | Lancashire; Blackburn CD |
| 30UC | Lancashire; Blackpool CD |
| 30UD | Lancashire; Burnley CD |
| 30UE | Lancashire; Chorley CD |
| 30UF | Lancashire; Fylde CD |
| 30UG | Lancashire; Hyndburn CD |
| 30UH | Lancashire; Lancaster CD |
| 30UJ | Lancashire; Pendle CD |
| 30UK | Lancashire; Preston CD |
| 30UL | Lancashire; Ribble Valley CD |
| 30UM | Lancashire; Rossendale CD |
| 30UN | Lancashire; South Ribble CD |
| 30UP | Lancashire; West Lancashire CD |
| 30UQ | Lancashire; Wyre CD |
| 31UB | Leicestershire; Blaby CD |
| 31UC | Leicestershire; Charnwood CD |
| 31UD | Leicestershire; Harborough CD |
| 31UE | Leicestershire; Hinckley and Bosworth CD |
| 31UF | Leicestershire; Leicester CD |
| 31UG | Leicestershire; Melton CD |
| 31UH | Leicestershire; North West Leicestershire CD |
| 31UJ | Leicestershire; Oadby and Wigston CD |
| 31UK | Leicestershire; Rutland CD |
| 32UB | Lincolnshire; Boston CD |
| 32UC | Lincolnshire; East Lindsey CD |
| 32UD | Lincolnshire; Lincoln CD |
| 32UE | Lincolnshire; North Kesteven CD |
| 32UF | Lincolnshire; South Holland CD |
| 32UG | Lincolnshire; South Kesteven CD |
| 32UH | Lincolnshire; West Lindsey CD |
| 33UB | Norfolk; Breckland CD |
| 33UC | Norfolk; Broadland CD |
| 33UD | Norfolk; Great Yarmouth CD |
| 33UF | Norfolk; Kings Lynn and West Norfolk CD |
| 33UG | Norfolk; North Norfolk CD |
| 33UH | Norfolk; Norwich CD |
| 33UJ | Norfolk; South Norfolk CD |
| 34UB | Northamptonshire; Corby CD |
| 34UC | Northamptonshire; Daventry CD |
| 34UD | Northamptonshire; East Northamptonshire CD |
| 34UE | Northamptonshire; Kettering CD |
| 34UF | Northamptonshire; Northampton CD |
| 34UG | Northamptonshire; South Northamptonshire CD |
| 34UH | Northamptonshire; Wellingborough CD |
| 35UB | Northumberland; Alnwick CD |
| 35UC | Northumberland; Berwick-upon-Tweed CD |
| 35UD | Northumberland; Blyth Valley CD |
| 35UE | Northumberland; Castle Morpeth CD |
| 35UF | Northumberland; Tynedale CD |
| 35UG | Northumberland; Wansbeck CD |
| 36UB | North Yorkshire; Craven CD |
| 36UC | North Yorkshire; Hambleton CD |
| 36UD | North Yorkshire; Harrogate CD |
| 36UE | North Yorkshire; Richmondshire CD |
| 36UF | North Yorkshire; Ryedale CD |
| 36UG | North Yorkshire; Scarborough CD |
| 36UH | North Yorkshire; Selby CD |
| 36UJ | North Yorkshire; York CD |
| 37UB | Nottinghamshire; Ashfield CD |
| 37UC | Nottinghamshire; Bassetlaw CD |
| 37UD | Nottinghamshire; Broxtowe CD |
| 37UE | Nottinghamshire; Gedling CD |
| 37UF | Nottinghamshire; Mansfield CD |
| 37UG | Nottinghamshire; Newark and Sherwood CD |
| 37UH | Nottinghamshire; Nottingham CD |
| 37UJ | Nottinghamshire; Rushcliffe CD |
| 38UB | Oxfordshire; Cherwell CD |
| 38UC | Oxfordshire; Oxford CD |
| 38UD | Oxfordshire; South Oxfordshire CD |
| 38UE | Oxfordshire; Vale of White Horse CD |
| 38UF | Oxfordshire; West Oxfordshire CD |
| 39UB | Shropshire; Bridgnorth CD |
| 39UC | Shropshire; North Shropshire CD |
| 39UD | Shropshire; Oswestry CD |
| 39UE | Shropshire; Shrewsbury and Atcham CD |
| 39UF | Shropshire; South Shropshire CD |
| 39UG | Shropshire; The Wrekin CD |
| 40UB | Somerset; Mendip CD |
| 40UC | Somerset; Sedgemoor CD |
| 40UD | Somerset; South Somerset CD |
| 40UE | Somerset; Taunton Deane CD |
| 40UF | Somerset; West Somerset CD |
| 41UB | Staffordshire; Cannock Chase CD |
| 41UC | Staffordshire; East Staffordshire CD |
| 41UD | Staffordshire; Lichfield CD |
| 41UE | Staffordshire; Newcastle-under-Lyme CD |
| 41UF | Staffordshire; South Staffordshire CD |
| 41UG | Staffordshire; Stafford CD |
| 41UH | Staffordshire; Staffordshire Moorlands CD |
| 41UJ | Staffordshire; Stoke-on-Trent CD |
| 41UK | Staffordshire; Tamworth CD |
| 42UB | Suffolk; Babergh CD |
| 42UC | Suffolk; Forest Heath CD |
| 42UD | Suffolk; Ipswich CD |
| 42UE | Suffolk; Mid Suffolk CD |
| 42UF | Suffolk; St Edmundsbury CD |
| 42UG | Suffolk; Suffolk Coastal CD |
| 42UH | Suffolk; Waveney CD |
| 43UB | Surrey; Elmbridge CD |
| 43UC | Surrey; Epsom and Ewell CD |
| 43UD | Surrey; Guildford CD |
| 43UE | Surrey; Mole Valley CD |
| 43UF | Surrey; Reigate & Banstead CD |
| 43UG | Surrey; Runnymeade CD |
| 43UH | Surrey; Spelthorne CD |
| 43UJ | Surrey; Surrey Heath CD |
| 43UK | Surrey; Tandridge CD |
| 43UL | Surrey; Waverley CD |
| 43UM | Surrey; Woking CD |
| 44UB | Warwickshire; North Warwickshire CD |
| 44UC | Warwickshire; Nuneaton and Bedworth CD |
| 44UD | Warwickshire; Rugby CD |
| 44UE | Warwickshire; Stratford-on-Avon CD |
| 44UF | Warwickshire; Warwick CD |
| 45UB | West Sussex; Adur CD |
| 45UC | West Sussex; Arun CD |
| 45UD | West Sussex; Chichester CD |
| 45UE | West Sussex; Crawley CD |
| 45UF | West Sussex; Horsham CD |
| 45UG | West Sussex; Mid Sussex CD |
| 45UH | West Sussex; Worthing CD |
| 46UB | Wiltshire; Kennet CD |
| 46UC | Wiltshire; North Wiltshire CD |
| 46UD | Wiltshire; Salisbury CD |
| 46UE | Wiltshire; Thamesdown CD |
| 46UF | Wiltshire; West Wiltshire CD |
| 56UB | Clwyd; Alyn and Deeside CD |
| 56UC | Clwyd; Colwyn CD |
| 56UD | Clwyd; Delyn CD |
| 56UE | Clwyd; Glyndwr CD |
| 56UF | Clwyd; Rhuddlan CD |
| 56UG | Clwyd; Wrexham Maelor CD |
| 57UB | Dyfed; Carmarthen CD |
| 57UC | Dyfed; Ceredigion CD |
| 57UD | Dyfed; Dinefwr CD |
| 57UE | Dyfed; Llanelli CD |
| 57UF | Dyfed; Preseli Pembrokeshire CD |
| 57UG | Dyfed; South Pembrokeshire CD |
| 58UB | Gwent; Blaenau Gwent CD |
| 58UC | Gwent; Islwyn CD |
| 58UD | Gwent; Monmouth CD |
| 58UE | Gwent; Newport CD |
| 58UF | Gwent; Torfaen CD |
| 59UB | Gwynedd; Aberconwy CD |
| 59UC | Gwynedd; Arfon CD |
| 59UD | Gwynedd; Dwyfor CD |
| 59UE | Gwynedd; Meirionnydd CD |
| 59UF | Gwynedd; Ynys Mon - Isle of Anglesey CD |
| 60UB | Mid-Glamorgan; Cynon Valley CD |
| 60UC | Mid-Glamorgan; Merthyr Tydfil CD |
| 60UD | Mid-Glamorgan; Ogwr CD |
| 60UE | Mid-Glamorgan; Rhondda CD |
| 60UF | Mid-Glamorgan; Rhymney Valley CD |
| 60UG | Mid-Glamorgan; Taff-Ely CD |
| 61UB | Powys; Brecknock CD |
| 61UC | Powys; Montgomeryshire CD |
| 61UD | Powys; Radnorshire CD |
| 62UB | South Glamorgan; Cardiff CD |
| 62UC | South Glamorgan; Vale of Glamorgan CD |
| 63UB | West Glamorgan; Lliw Valley CD |
| 63UC | West Glamorgan; Neath CD |
| 63UD | West Glamorgan; Port Talbot CD |
| 63UE | West Glamorgan; Swansea CD |
