Please use this guide when completing the "Region" field on the UK Fast 50 entry form.
| Postcode area | Area name | Region |
|---|---|---|
| AB | Aberdeen | Scotland |
| BA | Bath | South West & Wales |
| BT | Belfast | Northern Ireland |
| B | Birmingham | Midlands |
| BB | Blackburn | North West |
| FY | Blackpool | North West |
| BL | Bolton | North West |
| BH | Bournemouth | South West & Wales |
| BD | Bradford | North East |
| BN | Brighton | South East |
| BS | Bristol | South West & Wales |
| BR | Bromley | South East |
| CB | Cambridge | Cambridgeshire and East |
| CT | Canterbury | South East |
| CF | Cardiff | South West & Wales |
| CA | Carlisle | North West |
| CM | Chelmsford | Cambridgeshire and East |
| CH | Chester | North West |
| TS | Cleveland | North East |
| CO | Colchester | Cambridgeshire and East |
| CV | Coventry | Midlands |
| CW | Crewe | North West |
| CR | Croydon | London |
| DL | Darlington | North East |
| DA | Dartford | South East |
| DE | Derby | Midlands |
| DN | Doncaster | North East |
| DT | Dorchester | South West & Wales |
| DY | Dudley | Midlands |
| DG | Dumfries | Scotland |
| DD | Dundee | Scotland |
| DH | Durham | North East |
| EH | Edinburgh | Scotland |
| EN | Enfield | London |
| EX | Exeter | South West & Wales |
| FK | Falkirk and Stirling | Scotland |
| TD | Galashiels | Scotland |
| G | Glasgow | Scotland |
| GL | Gloucester | South West & Wales |
| GU | Guildford | South East |
| HX | Halifax | North East |
| HG | Harrogate | North East |
| HA | Harrow | London |
| HP | Hemel Hempstead | London |
| HR | Hereford | Midlands |
| HD | Huddersfield | North East |
| HU | Hull | North East |
| IG | Ilford | Cambridgeshire and East |
| IV | Inverness | Scotland |
| IP | Ipswich | Cambridgeshire and East |
| KA | Kilmarnock | Scotland |
| KT | Kingston upon Thames | London |
| KY | Kirkcaldy | Scotland |
| KW | Kirkwall | Scotland |
| LA | Lancaster | North West |
| LS | Leeds | North East |
| LE | Leicester | Midlands |
| ZE | Lerwick | Scotland |
| LN | Lincoln | Midlands |
| L | Liverpool | North West |
| LL | Llandudno | South West & Wales |
| E | London E | London |
| EC | London EC | London |
| N | London N | London |
| NW | London NW | London |
| SE | London SE | London |
| SW | London SW | London |
| W | London W | London |
| WC | London WC | London |
| LU | Luton | Cambridgeshire and East |
| M | Manchester | North West |
| MK | Milton Keynes | South East |
| ML | Motherwell | Scotland |
| NE | Newcastle upon Tyne | North East |
| NP | Newport | South West & Wales |
| NN | Northampton | Midlands |
| NR | Norwich | Cambridgeshire and East |
| NG | Nottingham | Midlands |
| OL | Oldham | North West |
| OX | Oxford | South East |
| PA | Paisley | Scotland |
| PH | Perth | Scotland |
| PE | Peterborough | Cambridgeshire and East |
| PL | Plymouth | South West & Wales |
| BH | Poole | South West & Wales |
| PO | Portsmouth | South East |
| PR | Preston | North West |
| RG | Reading | South East |
| RH | Redhill | South East |
| ME | Rochester | South East |
| RM | Romford | London |
| SP | Salisbury | South West & Wales |
| S | Sheffield | North East |
| SY | Shrewsbury | Midlands |
| SL | Slough | South East |
| UB | Southall | London |
| SO | Southampton | South East |
| SS | Southend-on-Sea | Cambridgeshire and East |
| AL | St Albans | Cambridgeshire and East |
| SG | Stevenage | Cambridgeshire and East |
| SK | Stockport | North West |
| ST | Stoke-on-Trent | Midlands |
| SR | Sunderland | North East |
| SM | Sutton | London |
| SA | Swansea | South West & Wales |
| SN | Swindon | South West & Wales |
| TA | Taunton | South West & Wales |
| TF | Telford | Midlands |
| TN | Tonbridge | South East |
| TQ | Torquay | South West & Wales |
| TR | Truro | South West & Wales |
| TW | Twickenham | London |
| WF | Wakefield | North East |
| WS | Walsall | Midlands |
| WA | Warrington | North West |
| WD | Watford | South East |
| WN | Wigan | North West |
| WV | Wolverhampton | Midlands |
| WR | Worcester | Midlands |
| YO | York | North East |