Letters first: Issued by Middlesex C.C. in 1949

Numbers first: Issued by Middlesex C.C. in 1957

Assigned (7)

MMM 444 - 2014 Chevrolet Corvette (Last V5c issued: August 2020)

MMM 666 - 2015 Mitsubishi L200 (Last V5c issued: April 2020)

MMM 888 - 2021 Mini (Last V5c issued: September 2021)

333 MMM - 1981 Marlin Roadster (Last V5c issued: May 2000)

555 MMM - 2019 Range Rover Sport (Last V5c issued: June 2022)

777 MMM - 2006 Citroen C4 (Last V5c issued: December 2010)

999 MMM - 2019 Nissan Juke (Last V5c issued: May 2019)

Known to be on retention (6)

MMM 111

MMM 333

MMM 555

MMM 777

MMM 999 

111 MMM

Unaccounted (5)

MMM 222

222 MMM

444 MMM

666 MMM

888 MMM