31That article concerns the conditions under which fees may be imposed for the rights of use for radio frequencies or numbers or rights to install facilities on, over or under public or private property (judgments in Belgacom and Mobistar, C‑256/13 and C‑264/13, EU:C:2014:2149, paragraph 31, and Base Company, C‑346/13, EU:C:2015:649, paragraph 19).
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