This report captures some of the key ways GSMA members and their partners responded to Hurricanes Irma and Maria in the Caribbean, from before the storms made landfall to the clean-up and restoration efforts. Using first-hand interviews and secondary resources, we have identified the major challenges MNOs faced in preparing and responding to the 2017 Atlantic hurricane season, and highlighted best practices and innovative approaches. The report also draws on lessons learned to provide recommendations for other GSMA members operating in climate-vulnerable small island states, where natural disasters are only likely to increase in intensity with climate change.