How the numbers work
On a current style mark the two numbers are its age identifier: 75 was issued from Sept. 2025, so it can only go on a car registered then or later. On a prefix mark the number sits after the year letter and can be anything from 1 to 999, which is where 1, 11 and 111 are found. A Northern Irish mark carries a number of up to four digits and no year at all, so it fits a vehicle of any age.
The best marks for each number
11
Two ones, which can stand in for letters and are easy to read at a glance.
SU11 ESH, DN11 MCK, YY11 RAK, SH11 EBH
See every 11 private plate69
The 69 identifier was issued from Sept. 2019, and suits a car from then on.
SA69 AAB, BB69 AAB, CB69 AAB, DB69 AAB
See every 69 private plate75
The 75 identifier was issued from Sept. 2025, so it goes on one of the newest cars.
AA75 AAB, BA75 AAB, CA75 AAB, DA75 AAB
See every 75 private plate76
The 76 identifier is the newest, issued from Sept. 2026.
AA76 AAB, BA76 AAB, CA76 AAB, DA76 AAB
See every 76 private plate99
A repeated number that is easy to read and remember.
S99 KVB, S99 AAO, S99 AAT, S99 AAU
See every 99 private plate100
A round number, sought after on its own or with initials.
S100 AAE, S100 AAK, S100 AAO, S100 AAT
See every 100 private plate111
Three ones read cleanly and suit initials either side.
S111 ACV, S111 AEJ, S111 AEU, S111 AEV
See every 111 private plate777
Three sevens, popular as a lucky number.
S777 AAU, S777 ABJ, S777 ABV, S777 ACN
See every 777 private plate