Initially providing ISP services, ITD Network launched Cooolbox in 2008 and rebranded in 2016.

The Cooolbox network is entirely built on the FTTH - AON technology and provides internet in Sofia, Plovdiv, and Veliko Tarnovo.

ITD Network (now Cooolbox) has provided Internet and telecommunication services in Bulgaria since launching in 1997.

At this stage, ITD Network mainly provided leased line access services to smaller ISPs and business customers in Plovdiv, Bulgaria.

In 2016, the company changed its name to Cooolbox, with which it ends the process of transformation from an ISP to an end-to-end Internet provider.