[brianmcc]

It's harmless, it's a 6 month window. Number plate:

XX24 - registered between 1 Mar 2024 - 31 Aug 2024

XX74 - registered between 1 Sep 2024 - 28 Feb 2025

XX25 - registered between 1 Mar 2025 - 31 Aug 2025

etc

The first two letters of a number plate identifies the location where the vehicle was registered. For example, LA – LY covers London and MA – MY covers Manchester and Merseyside. Nothing personally identifying whatsoever.

If you're truly paranoid about such things you can always buy a car registered hundreds of miles from your residence, and in practice with an abundance of second-hand (used) cars in the marketplace from across all the UK, there's always a huge variety of registration letters driving about anyway!