contract control 2025-09-16T17:51:58Z
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1&1 Control-CenterYour 1&1 Control CenterWith the 1&1 Control Center app, you can use all the advantages of your personal customer area on your smartphone or tablet - anywhere you have internet access. Always keep an eye on your data consumption, your call minutes and the costs incurred. For example, view your customer data and invoices, extend your contract, instruct us to port your phone number or move your internet connection. Helpful instructions and answers to frequently asked questions wil