| Regional Identifier | Region | DVLA Office | % Correct |
|---|---|---|---|
| SX-SY | Scotland | Aberdeen | 90%
|
| SK-SO | Scotland | Edinburgh | 90%
|
| SA-SJ | Scotland | Glasgow | 90%
|
| PA-PT | Preston | Preston | 90%
|
| CP-CV | Cymru | Swansea | 90%
|
| BA-BY | Birmingham | Birmingham | 80%
|
| CA-CO | Cymru | Cardiff | 80%
|
| YA-YK | Yorkshire | Leeds | 80%
|
| NA-NO | North | Newcastle | 80%
|
| HA-HJ | Hampshire and Dorset | Bournemouth | 70%
|
| WM-WY | West of England | Bristol | 70%
|
| WA-WJ | West of England | Exeter | 70%
|
| AV-AY | Anglia | Ipswich | 70%
|
| MA-MY | Manchester and Merseyside | Manchester | 70%
|
| FA-FP | Forest and Fens | Nottingham | 70%
|
| OA-OY | Oxford | Oxford | 70%
|
| HK-HY | Hampshire and Dorset | Portsmouth | 70%
|
| RA-RY | Reading | Reading | 70%
|
| YL-YU | Yorkshire | Sheffield | 70%
|
| GP-GY | Garden of England | Brighton | 60%
|
| PU-PY | Preston | Carlisle | 60%
|
| EA-EY | Essex | Chelmsford | 60%
|
| DA-DK | Deeside to Shrewsbury | Chester | 60%
|
| SP-ST | Scotland | Dundee | 60%
|
| FR-FY | Forest and Fens | Lincoln | 60%
|
| AO-AU | Anglia | Norwich | 60%
|
| VA-VY | Severn Valley | Worcester | 60%
|
| GA-GO | Garden of England | Maidstone | 50%
|
| DL-DY | Deeside to Shrewsbury | Shrewsbury | 50%
|
| WK-WL | West of England | Truro | 50%
|
| HW | Hampshire and Dorset | Isle of Wight | 40%
|
| YV-YY | Yorkshire | Beverley | 30%
|
| KA-KL | No official mnemonic | Luton | 30%
|
| KM-KY | No official mnemonic | Northampton | 30%
|
| LA-LJ | London | Wimbledon | 30%
|
| AA-AN | Anglia | Peterborough | 20%
|
| CW-CY | Cymru | Bangor | 10%
|
| NP-NY | North | Stockton | 10%
|
| LU-LY | London | Sidcup | 0%
|
| LK-LT | London | Stanmore | 0%
|