Letters first: Issued by London C.C. in 1957

Numbers first: Three released via DVLA auctions (222, 333, 444, 666, 777 and 999 yet to be auctioned)

Assigned (6)

UUU 333 - 1965 Maserati (Last V5c issued: December 2006)

UUU 555 - 2007 Fiat Ducato (Last V5c issued November 2014)

UUU 666 - 1993 Ferrari 348 (Last V5c issued: January 2008)

UUU 888 - 2023 Polestar 2 Plus (Last V5c issued: May 2023)

111 UUU - Range Rover Sport (Last V5c issued: October 2022)

555 UUU - 2018 Mercedes GLA (Last V5c issued: November 2020)

Known to be on retention (3)

UUU 222 (Previously assigned to BMW 520)

UUU 777

888 UUU (Previously assigned to Berlingo & Peugeot 308)

Unaccounted (3)

UUU 111

UUU 444

UUU 999

Auction Results (including fees):

111 UUU - £1,749.20 in November 1992

555 UUU - £2,327.00 in June 2001

888 UUU - £2,134.40 in December 2001