On Monday, 14 December 2009 at approximately 4:30am, the Telecom XT Mobile Network went down for the majority of people who live south of Taupo for eight hours (although there were claims of issues slightly before this time).
More recently: On Wednesday, 11 February 2015 at around 5:30pm the Spark mobile network suffered another major outage, preventing customers nationwide from making or receiving calls, sending/receiving text messages and using mobile data [REF].