Navigate through and choose the final letters to continue building your registration
Find your registration by entering the final two letters
Select the final two letters to complete the registration. Click any complete registration to view detailed vehicle information. Registrations with this format were first issued September 2005 to February 2006.
Registrations with this format were first issued September 2005 to February 2006.
The first letter O indicates the region where the vehicle was registered.
The second character N specifies the local DVLA office.
The two numbers 55 represent the date when the vehicle was registered.
The final three letters are randomly assigned to make each registration unique.
To find more information about a specific registration like ON55O, you can use our vehicle lookup tool or enter the full registration into the search bar at the top of the page.
Try our partial plate search tool for more options or type the full registration into the search bar at the top.