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Networks

We are the network

Deutsche Telekom is building the network for Germany. It consists of mobile networks and 5G as well as optical fiber. Choose a topic and get information about our technologies and projects.

A bundle of fiber optic cable

What is optical fiber?

We explain how fiber optic technology works and what speeds it enables users to surf the Internet.

glass-fiber

How does glass fiber work?

Do you know how thick or thin a glass fiber is? And why it works so fast? #Netzgeschichten eplains.

220921-Whats-new-Claudia-EN

Claudia Nemat „Fiber optic earth rocket"

Optical fiber.

Fiber optics

Fiber optics transports large amounts of data in very short times.

5G

Basic information on the 5G network

What is 5G? We present interesting facts and show the advantages of 5G technology.

Connected Car

Data transmission in real time

Real-time data communication based on 5G speed will play a key role in many applications in the future.

A hand is holding a 5G smartphone

5G is rolling out and around in Europe

An overview of the 5G roll-out progress in European national companies.

5G roll-out: Some stand alone, we stand together

5G SA is another stage of the latest mobile communications standard. What are the differences to the...

240124-whats-new-CN-16

AI phone | What's new Claudia?

The picture shows a transmitter mast in a model of an exhibition booth.

Cell Tower to Go at MWC 2024

Deutsche Telekom presents the latest version of the ultra-mobile transmission mast for temporary mobile...

Deutsche Telekom has installed the 5G campus network on the RTL studios site in Cologne-Deutz.

5G Campus Network for RTL

The media company RTL Deutschland now has its own 5G standalone network, which makes television...

News on network expansion

Current articles and videos about Deutsche Telekom's network expansion - mobile and fixed-line, above and under ground. With „choose topic“ you can filter the articles and get the latest news on your topic of choice. 

Your choice

Illustration. A woman with glasses. Slogan „Shaping Technology for all“.

Company

MWC 2025: We are counting the days

6 hours

Portrait of Klaus Werner, Director Business Customers, Telekom Deutschland.

Company

2025: A year that defines the digital future

1 week

Deutsche Telekom consolidates Wholesale Activities.

Media

Deutsche Telekom consolidates Wholesale Activities

2 weeks

Company logos of Telekom, Skylo and Qualcomm above the globe

Media

Telekom, Skylo and Qualcomm demonstrate SMS over...

8 weeks

Melody of Europe: this is how Deutsche Telekom’s network sounds

Media

Melody of Europe: this is how Deutsche Telekom’s network sounds

8 weeks

Schmuckbild

Media

More speed on old frequencies: ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎...

13 weeks

Easy and simple

What does the abbreviation FTTH stand for? What’s the difference between fiber-optic and LTE? We explain the key topics connected to Deutsche Telekom network expansion. 

glass-fiber

How does glass fiber work?

Do you know how thick or thin a glass fiber is? And why it works so fast? #Netzgeschichten eplains.

Netzgeschichten

A technician cuts individual optical fibers using pliers.

Fiber-optic cable as the optical waveguide for fast internet

How is a fiber-optic cable structured? How do optical waveguides work? How are optical waveguide cables laid? Learn more about...

Easy and simple

Fast, reliable, high-speed internet is an important prerequisite for meeting the digital demands of tomorrow.

Fiber-optic connections

Fast, reliable, high-speed Internet is an important prerequisite for meeting the digital demands of tomorrow.

From FTTC to FTTH

Further information

On these pages you will find our online special on politics and regulatory affairs as well as download material for media.

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