Propose changes for the network operating as Sonic Duo CJSC Sonic (Duo) in Russian Federation. Your suggestions will be reviewed by an administrator before being published.
The commercial brand name for the network.
The legal name of the network operator.
A brief description of the network, its history, or services.
Transferred Account Data Interchange Group code.
Country dialling code, if applicable to this network entry (e.g., for a specific MVNO service).
Select all technologies supported by this network.
Provide any additional context or sources for your suggested changes.