Cracking the Code Demystifying Area Identifiers on UK Number Plates
Reg Plates ArticleChoose a first letter to see two-letter combinations
Cracking the Code Demystifying Area Identifiers on UK Number Plates

Ever driven behind a car and wondered where it hailed from? In the UK, the answer might be hiding right on its number plate. Those first two seemingly random letters hold a secret: the area identifier, a code revealing the vehicle's registration region.
But how do you crack this code? Buckle up, as we take a deep dive into the world of UK number plate area identifiers!
From Past to Present: A Shifting Landscape
Before 2001, UK number plates used a different system. The first letter denoted the year of registration, while the last two identified the area. So, an "A123 ABC" plate meant the car was registered in 1961 (A) and somewhere in Anglia (BC). This "prefix" format, as it's called, gave way to the current "suffix" system in 2001.
Today's plates follow a "AA 12 ABX" format. The crucial part for our detective work is the first two letters, the area identifier. These no longer directly link to registration offices (since they closed in 2013), but still pinpoint the general region where the car was first registered.
Memory Tags: A Mnemonic Marvel
The two-letter identifiers are often referred to as "memory tags" by the Driver and Vehicle Licensing Agency (DVLA). They're chosen to be somewhat mnemonic, using the first letter of the region's name or a nearby landmark.
For example, "LT" stands for London Taxi, a fitting tribute to the city's iconic cabs. Similarly, "BY" represents Blackpool, while "KO" whispers of Kent.
Navigating the Maze: A Regional Rundown
With 67 different memory tags in use, mastering the map is key. Thankfully, some patterns emerge:
England: Most English regions use a single letter as the first identifier, like "B" for Birmingham, "S" for Sheffield, and "M" for Manchester.
Scotland: Scottish identifiers typically start with "S," followed by another letter denoting the specific area, like "SN" for Stirling and "ST" for Strathclyde.
Wales: Welsh tags usually begin with "W," followed by another letter, like "WX" for Wrexham and "WY" for Wrexham and Chester.
Northern Ireland: Northern Irish plates use a different format altogether, with a three-letter code like "NIY" for Newry and "WIR" for Omagh.
Beyond the Basics: Unraveling the Mysteries
While most tags stick to the patterns, some throw curveballs. "BJ" doesn't stand for Birmingham-Jersey (though that would be a cool ferry!), but rather Bournemouth and Poole. And "AI" isn't Artificial Intelligence, but Aberdeen and Inverness.
To truly master the art of plate-reading, arm yourself with resources like the DVLA's official list of area identifiers or handy online decoders.
More Than Just Geography: A Fun Fact Fiesta
Area identifiers aren't just about location; they can be a source of fun facts and trivia too!
Did you know "SY" originally stood for Shrewsbury, but was later changed to "Shropshire" due to complaints from Telford, which felt left out?
Or that "AO" was briefly used for Aberdeen and Orkney, but scrapped because it looked too similar to "BO"?
These quirky stories add a layer of human interest to the seemingly mundane world of number plates.
So, the next time you're stuck in traffic, don't just zone out. Take a closer look at those license plates. With a little knowledge, you might just crack the code and discover the fascinating tales hidden within!
So what are the top selling number plates in the UK? The DVLA has been selling private plates to UK motorists since 1989. During this time, there have been a number of records set, but most of the top 10 have been bought in the past 15 years. Here’s what currently makes the list:
- 25 0 – A Ferrari dealer bought this for £518k in 2014. It is now on a £10 million Ferrari 250 SWB.
- F 1 – A businessman, Afzal Khan, bought this for £440k in 2008 and put it on his McLaren-Mercedes SLR.
- S 1 – This was bought in 2008 for £404k by an anonymous buyer.
- 1 D – Businessman Nabil Bishara bought this plate in 2009 (before One Direction was formed, so it is not a reference to the band) for £352k.
- M 1 – Businessman Mike McCoomb bought this number plate in 2006 for £331k, apparently for his son, who was 10 at the time.
- VIP 1 – Chelsea owner and businessman Roman Abramovich bought this plate for £285k in 2006.
- 51 NGH – This number plate, which looks like the surname Singh, was sold in 2006 for £254k.
- 1 RH – Businessman Robert Haverson bought this in 2006 for £247k.
- K1 NGS – This reg plate, which looks like the word “kings”, was bought anonymously in 1993 for £231k.
- 1 0 – This very simple but striking number plate was bought anonymously in 2009 for £170k.
These are large amounts of money, but they are all small compared to the top-selling number plates found in other parts of the world. Abu Dhabi, in the UAE, has the record for the most expensive number plate ever sold. That number plate was a simple “1”. It was bought in 2008 by businessman Saeed Abdul Ghaffar Khouri for £7.25 million.
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