Register of communication operators. This is a register listing all Telecommunication Operators. Its purpose is to ensure the transparency and disclosure of ownership structures, to enable application of the rules concerning anti-concentration regulations, the protection of information pluralism, and compliance with the limits set for shareholdings in foreign companies. More information can be found on the ROCROC Register of communication operators. This is a register listing all Telecommunication Operators. Its purpose is to ensure the transparency and disclosure of ownership structures, to enable application of the rules concerning anti-concentration regulations, the protection of information pluralism, and compliance with the limits set for shareholdings in foreign companies. More information can be found on the ROC page. page.