About us

1&1 AG, headquartered in Montabaur, is a publicly listed telecommunications provider
and part of the United Internet Group.
With a strong focus on the German market, 1&1 actively drives the country's digital sovereignty.

Better and better every day

With over 30 years of experience, 1&1 stands for powerful mobile plans, award-winning customer service, and continuous product innovation – from all-net-flat rates and unlimited data plans to exclusive benefits through the 1&1 Vorteilswelt. The 1&1 Service Card offers premium services such as 24-hour device replacement and a dedicated priority hotline. 1&1 promotes digital inclusion through reliable, competitively priced products – consistently awarded top marks by independent trade publications. In addition, the discount brands of Drillisch Online GmbH serve price-sensitive customers with a strong focus on affordability.

The 1&1 O-RAN

1&1 operates the first fully virtualized 5G mobile network in Europe based on innovative Open RAN technology – independent, open by design, and built for the real-time applications of tomorrow. As Germany's fourth mobile network, the 1&1 O-RAN stands for greater competition and innovation in the national telecommunications landscape.

Nationwide Broadband Coverage

As one of Germany's leading providers of VDSL, vectoring, and next-generation fiber internet, 1&1 is driving Germany's gigabit transformation. The company leverages the nationwide fiber-optic transport network of 1&1 Versatel and, through partnerships with Deutsche Telekom and leading city carriers, is able to supply millions of households with future-proof fiber connections.

Output Messenger 1.0.89 — Apk Download 'link'

In this detailed guide, we will cover everything you need to know about Output Messenger, the significance of version 1.0.89, how to safely download and install the APK, and why this platform is becoming the go-to choice for secure business communication.

For the most secure and up-to-date installation, please refer to official sources: Output Messenger - App Store - Apple output messenger 1.0.89 apk download

: Users can only log in using accounts pre-created by an administrator via the Server Manager tool . Key Features for Office Collaboration In this detailed guide, we will cover everything

Unlike Slack or Microsoft Teams, Output Messenger operates on a perpetual license model. Once you purchase the server license, the Android client (including version 1.0.89) is free to deploy on unlimited devices within your organization. Once you purchase the server license, the Android

Output Messenger 1.0.89 is an older version of the secure, on-premise office chat application developed by Srimax Software System Private Limited . While specific legacy APKs like version 1.0.89 are sometimes hosted on third-party repositories like Aptoide , it is highly recommended to use the latest version (currently 1.0.121) to ensure the most robust security and feature set. Essential Setup for Output Messenger

For the most secure and up-to-date installation, please refer to official sources: Output Messenger - App Store - Apple

: Users can only log in using accounts pre-created by an administrator via the Server Manager tool . Key Features for Office Collaboration

Social Commitment

As a successful telecommunications company, 1&1 sees itself as part of society and takes the responsibility that goes with this. Our corporate social responsibility activities revolve around our United Internet for UNICEF foundation.

Learn more

Sustainability

Doing business sustainably is a part of what 1&1 does every day. Our goal is to be a pioneer in this area as well.

Learn more

Non-financial Group report 2025

PDF 1,75 MB

ESG-Report 2024/2025

PDF Download (15,7 MB)