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| level1 | level2 | level3 | name |
|---|---|---|---|
| GB | GB-ENG | GB-CMD | Camden |
| GB | GB-ENG | GB-CHS | Cheshire |
| GB | GB-ENG | GB-CON | Cornwall |
| GB | GB-ENG | GB-COV | Coventry (City of) |
| GB | GB-ENG | GB-CRY | Croydon |
| GB | GB-ENG | GB-CMA | Cumbria |
| GB | GB-ENG | GB-DAL | Darlington |
| GB | GB-ENG | GB-DER | Derby (City of) |
| GB | GB-ENG | GB-DBY | Derbyshire |
| GB | GB-ENG | GB-DEV | Devon |
| GB | GB-ENG | GB-DNC | Doncaster |
| GB | GB-ENG | GB-DOR | Dorset |
| GB | GB-ENG | GB-DUD | Dudley |
| GB | GB-ENG | GB-DUR | Durharn |
| GB | GB-ENG | GB-EAL | Ealing |
| GB | GB-ENG | GB-ERY | East Riding of Yorkshire |
| GB | GB-ENG | GB-ESX | East Sussex |
| GB | GB-ENG | GB-ENF | Enfield |
| GB | GB-ENG | GB-ESS | Essex |
| GB | GB-ENG | GB-GAT | Gateshead |
| GB | GB-ENG | GB-GLS | Gloucestershire |
| GB | GB-ENG | GB-GRE | Greenwich |
| GB | GB-ENG | GB-HCK | Hackney |
| GB | GB-ENG | GB-HAL | Haiton |
| GB | GB-ENG | GB-HMF | Hammersmith and Fulham |
| GB | GB-ENG | GB-HAM | Hampshire |
| GB | GB-ENG | GB-HRY | Haringey |
| GB | GB-ENG | GB-HRW | Harrow |
| GB | GB-ENG | GB-HPL | Hartlepool |
| GB | GB-ENG | GB-HAV | Havering |
| GB | GB-ENG | GB-HEF | Herefordshire, County of |
| GB | GB-ENG | GB-HRT | Hertfordshire |
| GB | GB-ENG | GB-HIL | Hillingdon |
| GB | GB-ENG | GB-HNS | Hounslow |
| GB | GB-ENG | GB-IOW | Isle of Wight |
| GB | GB-ENG | GB-IOS | Isles of Scilly |
| GB | GB-ENG | GB-ISL | Islington |
| GB | GB-ENG | GB-KEC | Kensington and Chelsea |
| GB | GB-ENG | GB-KEN | Kent |
| GB | GB-ENG | GB-KHL | Kingston upon Hull, City of |
| GB | GB-ENG | GB-KTT | Kingston upon Thames |
| GB | GB-ENG | GB-KIR | Kirklees |
| GB | GB-ENG | GB-KWL | Knowsley |
| GB | GB-ENG | GB-LBH | Lambeth |
| GB | GB-ENG | GB-LAN | Lancashire |
| GB | GB-ENG | GB-LDS | Leeds (City of) |
| GB | GB-ENG | GB-LCE | Leitester (City of) |
| GB | GB-ENG | GB-LEC | Leicestershire |
| GB | GB-ENG | GB-LEW | Lewisham |
| GB | GB-ENG | GB-LIN | Lincolnshire |
| GB | GB-ENG | GB-LIV | Liverpool (City of) |
| GB | GB-ENG | GB-LND | London, City of |
| GB | GB-ENG | GB-LUT | Luton |
| GB | GB-ENG | GB-MAN | Manchester (City of) |
| GB | GB-ENG | GB-MDW | Medway |
| GB | GB-ENG | GB-MRT | Merton |
| GB | GB-ENG | GB-MDB | Middlesbrough |
| GB | GB-ENG | GB-MIK | Milton Keynes |
| GB | GB-ENG | GB-NET | Newcastle upon Tyne (City of) |
| GB | GB-ENG | GB-NWM | Newham |
| GB | GB-ENG | GB-NFK | Norfolk |
| GB | GB-ENG | GB-NEL | North East Lincolnshire |
| GB | GB-ENG | GB-NLN | North Lincolnshire |
| GB | GB-ENG | GB-NSM | North Somerset |
| GB | GB-ENG | GB-NTY | North Tyneside |
| GB | GB-ENG | GB-NYK | North Yorkshire |
| GB | GB-ENG | GB-NTH | Northamptonshire |
| GB | GB-ENG | GB-NBL | Northumberland |
| GB | GB-ENG | GB-NGM | Nottingham (City of) |
| GB | GB-ENG | GB-NTT | Nottinghamshire |
| GB | GB-ENG | GB-OLD | Oldham |
| GB | GB-ENG | GB-OXF | Oxfordshire |
| GB | GB-ENG | GB-PTE | Peterborough |
| GB | GB-ENG | GB-PLY | Plymouth (City of) |
| GB | GB-ENG | GB-POL | Poole |
| GB | GB-ENG | GB-POR | Portsmouth (City of) |
| GB | GB-ENG | GB-RDG | Reading |
| GB | GB-ENG | GB-RDB | Redbridge |
| GB | GB-ENG | GB-RCC | Redcar and Cleveland |
| GB | GB-ENG | GB-RIC | Richmond upon Thames |
| GB | GB-ENG | GB-RCH | Rochdale |
| GB | GB-ENG | GB-ROT | Rotherharn |
| GB | GB-ENG | GB-RUT | Rutland |
| GB | GB-ENG | GB-SHN | St. Helens |
| GB | GB-ENG | GB-SLF | Salford (City of) |
| GB | GB-ENG | GB-SAW | Sandweil |
| GB | GB-ENG | GB-SFT | Sefton |
| GB | GB-ENG | GB-SHF | Sheffield (City of) |
| GB | GB-ENG | GB-SHR | Shropshire |
| GB | GB-ENG | GB-SLG | Slough |
| GB | GB-ENG | GB-SOL | Solihull |
| GB | GB-ENG | GB-SOM | Somerset |
| GB | GB-ENG | GB-SGC | South Gloucestershire |
| GB | GB-ENG | GB-STY | South Tyneside |
| GB | GB-ENG | GB-STH | Southampton (City of) |
| GB | GB-ENG | GB-SOS | Southend-on-Sea |
| GB | GB-ENG | GB-SWK | Southwark |
| GB | GB-ENG | GB-STS | Staffordshire |
| GB | GB-ENG | GB-SKP | Stockport |
| GB | GB-ENG | GB-STT | Stockton-On-Tees |
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