The former Magpies youth player has also captained England Schools during his time in the game.
He played a full season with Dereham last season, but will now move onto pastures new after agreeing professional terms with Grant McCann’s side.
A club statement on social media read: “We thank Ashton for his contributions, wishing him all the best and for a long, successful career in the game.
Photo credit: Dereham Town
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