What is your customer service number 1

Free hotline for all 1 & 1 customers

Service in the 1 & 1 Control Center

Just make sure you stop by:

If you get stuck, there is a blue help & contact magnifying glass at your disposal. There you can search for specific topics and find suitable help suggestions from us. If you would like to speak to us personally, you can contact our customer service there directly and conveniently.

Tip: In the 1 & 1 Control Center you will also find helpful information on how you can improve your WiFi connection.

We have already answered many frequently asked questions in the 1 & 1 Help Center. You may find the solution to your problem here with just a few clicks of the mouse.

In addition, we are always there for you on the following social media channels or at the following phone numbers.

Service on social media

You can find the support team for DSL and mobile communications on Twitter at @ 1und1service or on Facebook at https://facebook.com/1und1. The hosting service team is there for you at @ 1und1hilfe and https://facebook.com/1und1hosting.

Service on the phone

A call to the hotline from the German 1 & 1 network is free of charge - whether from a landline or a mobile phone. If you call from another network, you only pay the fees for calls to the fixed network set by the respective provider.

  • If you are already a 1 & 1 customer, you can reach our support hotline on 0721/9600.
  • Would you like to become a 1 & 1 customer and seek advice? Call your personal contact on 0721/9605727. We look forward to you.

1 & 1 WLAN promise

As part of the new complete service offer, 1 & 1 supports you both with the initial setup of your DSL connection and with the integration of WLAN-enabled devices throughout the house - even afterwards and regardless of where the devices were purchased. Our 1 & 1 experts can be reached at any time via the well-known hotline number. Even if your WLAN does not arrive in every room at home, we will be happy to help you optimize the range and give you tips.

You can find an overview of the contact numbers for purchase advice and support here: https://www.1und1.de/Kontakt