This document is the annual report for ETIS (European Telecommunications Network Operators' Association) for 2011-2012. It summarizes the key events of the year including the 20th anniversary celebration of ETIS hosted in Cyprus in October 2011. It provides an overview of council members and board meetings. It also discusses the activities of the working groups, new members that joined, and deliverables including benchmarking reports produced. The central office report outlines the team's activities in supporting the management board, working groups and communications.