Australia, at 14th, had a global IDI of 7.36.
The ITU noted the New Zealand Government investment into upgrading its broadband infrastructure to increase the country's global competitiveness as a major component of its rankings boost.
New Zealand is spending around $NZ1.5 billion on a mix of fibre-to-the-home (FTTH), fibre-to-the-node (FTTN) and existing copper communications infrastructure as well as $NZ300 million on improving rural broadband.
Australia is spending $36 billion on a predominantly FTTH National Broadband Network (NBN).
The ITU report made no mention of Australia's NBN.