SIO 1 Number Plate
The known history of SIO1, bringing together documented vehicle assignments, auction sales, advertisements, photographs and other evidence.
Last checked by our plate checker: 13 Sept 2026, 15:28
SIO 1 (SIO1) — Number Plate History & Timeline
Also written as SIO1. History, past vehicles, DVLA records, auction sales, advert appearances, spotted photos, pictures and images for number plate SIO 1.
Issued
This number plate was originally issued between July 1972 and 1963 in Kildare
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What is SIO 1 worth?
The value of SIO 1 is influenced by its dateless format, the relevance and popularity of the letters SIO, its low number and comparable sales.
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