With 1&1, customers can switch tariffs (e.g. 1&1 Internet) without interruption.

1&1 Simple Change

As of today (23.12.2025), 1&1 has a new service promise: 1&1 takes care of everything and promises uninterrupted switching for all tariffs with a contract term. The 1&1 Easy Switch is guaranteed for all Internet and mobile tariffs. If the promise is not kept, your customer will receive €100. Perfect for customers who want to take out a new tariff without having to make a big effort!