The report discusses the widespread adoption of network sharing in most telecom markets and the new wave of interest in active network sharing for 5G rollout. It highlights that network sharing allows decoupling from legacy 2G/3G and is being shown interest by new, non-telco entrants. European regulators are also warming up to active network sharing. The report emphasizes that governance models must be tailored to each party's objectives and that network sharing is a stepping-stone for overall company strategy. The report also provides a glossary of key terms.