Spark NZ, Vodafone NZ and Vocus NZ have blocked access to 8chan, 4chan, LiveLeak, 8ch, Mixtape, Mega, Mega. New Zealand telcos are working together to identify and block access at DNS level to such online locations. 8chan and 4chan are currently unavailable to New Zealanders trying to load them through a connection from the three telcos. As soon as the horrific content from the Christchurch incident is removed, access to the website is reestablished.
Source: https://www.bleepingcomputer.com/news/security/new-zealand-mobile-carriers-block-8chan-4chan-and-liveleak/