"Google failed to meet the requirements of Roskomnadzor and in violation of a court verdict continued to allow Telegram to use its IP addresses to carry out activities in Russia", Roskomnadzor said in a statement.
In the end, it seems Roskomnadzor even banned itself, having to request some domains be unblocked as their internal processes were reported to have been shut down by the IP address blockage.
Russia's attempt to block popular messaging app Telegram has so far been unsuccessful.
Russia's telecom watchdog said on Sunday it has included some Google's IP addresses in the registry of banned information as the US Internet giant has failed to comply with its demands on blocking Telegram messenger in Russian Federation.
It also requested that Google and Apple remove the service's mobile applications from their respective app stores in Russian Federation.
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As users found ways around the ban, Roskomnadzor blacklisted 18 million IP addresses apparently used to reroute Telegram traffic.
Following the court ruling, Telegram founder Pavel Durov said the restrictions can be bypassed by Virtual Private Networks (VPNs) or proxy servers, which funnel a user's data through a country where the required services are not blocked.
On Monday, Roskomnadzor began blocking the Telegram messenger in Russian Federation in accordance with a court decision. Telegram said those demands would be impossible to implement since the keys were stored on users' devices.
Russian experts also warned that free VPNs used to bypass banned websites can be risky because they are often used by cyber criminals to get access to personal data. On the same day, the Russian media watchdog started blocking IP addresses of Google and Amazon subnetworks used by Telegram. At the same time, Telegram remains available to users.