In that map Numantia should be Arekoratas (the oppida is in the north east of modern Soria). Rest are both arevacian and other oppida which they subjugated or inter-mixed with.
The Celtiberi as a whole settled an ever greater area:
Of course most of the sources write about the 2nd century BC wars and the celtiberian confederacy was formed around the mid 3rd century BC. The Arevaci in 272 BC would be controlling a smaller western portion of that land (archaeology indicates an eastern movement by the Arevaci, which culminated with the aforementioned confederacy).
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