21 IO Number Plate
The known history of 21IO, bringing together documented vehicle assignments, auction sales, advertisements, photographs and other evidence.
Last checked by our plate checker: 14 Sept 2026, 00:42
21 IO (21IO) — Number Plate History & Timeline
Also written as 21IO. History, past vehicles, DVLA records, auction sales, advert appearances, spotted photos, pictures and images for number plate 21 IO.
Issued
This number plate was originally issued between January 1904 and February 1913 in Birmingham
Own 21 IO? Get a free valuation and cash offer here
Alternatively, list this plate on our site for free.
What is 21 IO worth?
The value of 21 IO is influenced by its dateless format, the relevance and popularity of the letters IO and comparable sales.
Found this interesting? Add NumberPlates.org as a preferred source on Google