The agreement will initially focus on three major data centres from each operator, with more facilities introduced over time.
The cooperation will include infrastructure as a service (IaaS) with virtual servers and multi-cloud solutions.
The companies claim China Unicom’s customers will benefit from Telefonica’s three main data centres located in Sao Paolo, Miami and Madrid.
In exchange, Telefonica will utilise the cloud capabilities of China Unicom’s data centres across China in Langfang, Shanghai and Chongqing to enable end-to-end service delivery for global customers.