The fixed access network reaches into homes and businesses over a combination of copper, fibre and in some regions, cable. Chorus
delivers the copper network and 70 percent of the UFB fibre network. The remainder of the UFB fibre network is delivered by Northpower Fibre
in Northland; Ultrafast Fibre
in the Bay of Plenty, Taranaki and the Waikato area; and Enable Networks
The traffic downstream (or upstream) from each of the 1.22 million connections is then transported around the country by a core network of lines and exchanges before being handed over to broadband retailers – such as Spark
and many others – at different locations around the country.
The providers optimise their core networks to ensure residential and business consumers get the best possible broadband performance. This includes caching – or keeping local copies – of the most frequently used content for efficiency and managing how the traffic is transported around the country. They also provide the essential online security tools to minimise spam and keep data safe. Software firewalls, sophisticated intrusion detection tools and spam filtering are such examples all designed to thwart malicious content.
Broadband retailers (ISPs) also purchase international capacity that allows New Zealanders to access content from servers around the world, such as YouTube, Google, Facebook and infinitely more.
The mobile network infrastructure runs overs a combination of 2G, 3G and 4G technologies operated by Spark, Vodafone and 2degrees. Data is transported to and from a device through to mobile sites, before being connected into the main national data transport networks.
Mobile network services may also be resold by other retail network providers, such as Skinny, Slingshot and Warehouse Mobile.