The National Australia Bank (NAB) is set to close down its Knox data center in Melbourne, Australia.

As reported by The Australian, the data center exit is part of the bank's plans to migrate to the cloud.

NAB has been scaling back its data centers for more than a decade. In 2013, it began cutting back - starting with a footprint of 23 facilities. At present, NAB has two data centers: the Knox facility now closing down, and a data center in Deer Park, leased from Digital Realty since 2011.

The Knox data center is owned by NAB, which put it up for sale last year. The plot spans 31,677 sqm (340,970 sq ft), while the data center building has 28,371 sqm (305,383 sq ft) of floorspace and a capacity of up to 6.5MW.

The facility is listed by CBRE under a sale-leaseback agreement with NAB, and is located at 122 Lewis Road in Melbourne. Bids were due by August 2025, but the property currently remains listed.

The bank is a known customer of Amazon Web Services (AWS), Google Cloud, and Microsoft Azure. NAB signed a contract with Google Cloud in 2025, having previously selected AWS as its primary cloud provider in 2013 and adding Microsoft to the mix in 2020.

In addition to revealing plans to exit the data center, NAB has poached rival Commonwealth Bank of Australia's (CBA) general manager of AI and agentic AI, Mahya Knox. Knox will work in NAB’s digital, data, and AI leadership team and help NAB with its AI adoption.

CBA itself has been going through a lengthy cloud migration effort, which was completed in Q2 of 2025. The migration was undertaken with help from HCLTech and saw more than 61,000 data pipelines moved to AWS.