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HM21 number plates
Portsmouth — March 2021 to August 2021
Vehicles with a HM21 plate were first registered at the Portsmouth DVLA office between March 2021 and August 2021. The three random letters at the end are unique to each vehicle — for example, HM21NLG or HM21ABC are individual registrations.
Check a HM21 plate
Enter the full 7-character registration number (e.g. HM21ABC)
HM21 registration variations
All HM21 plates share the same registration area and period. The three random letters (below shows the first) are unique to each individual vehicle.
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About HM21 plates
Registration area
Portsmouth
Hampshire & Dorset
Registration period
March 2021
to August 2021
Area code
HM — Portsmouth DVLA
Age identifier: 21