A1 Telekom Austria and Sunrise will establish the fastest Dark Fiber route from Vienna to Zürich in July 2025

A1 Austria (AT) and Sunrise Communications AG (CH) have joined forces to build the shortest and fastest dark fiber route between Vienna and Zürich. This brand new fiber infrastructure ensures the lowest possible latency for data transfer between these key European hubs. Telcos, fixed network operators, OTT services, broadcasters and global enterprises will benefit from robust, future-proof connectivity to support critical applications, including cloud services, media broadcasting and emerging technologies such as AI and machine learning.

“The partnership between A1 Austria and Sunrise, Switzerland's leading challenger in the Swiss telecommunications market, combines the expertise of two leading network providers to create a seamless, high-performance dark fiber route. By leveraging their combined capabilities, the project offers customers not only superior network quality, but also streamlined operations with a single point of contact.”, emphasizes Denis Filazafovitch, International Business Director of A1.

“At Sunrise, we are constantly pushing the boundaries of connectivity to empower our customers with the tools they need to thrive in an increasingly digital and interconnected world. The partnership with A1 Austria marks a new milestone for cross-border data transfer between Vienna and Zurich, and thus strengthens our commitment to Swiss based companies operating internationally. Together, we’re not just connecting Zürich and Vienna, but we’re enabling businesses and industries to unlock their full potential through future-proof network infrastructure,” says Thorsten Haeser, Chief Business Officer of Sunrise.

^{About Sunrise} 
Sunrise Communications AG («Sunrise») is Switzerland's leading challenger, with a strong number two position in the Swiss telecommunications market, and is listed on SIX Swiss Exchange (SUNN). By providing the most comprehensive fixed network access and a world-class mobile network delivering the highest gigabit coverage in Switzerland, Sunrise stands out as a premium and scaled company. Based on its best-in-class, future-fit networks, Sunrise provides high-quality mobile, landline, broadband and TV services to residential customers and empowers business customers with 360° communications and integrated ICT solutions for connectivity, security and IoT from a single source, thereby advancing their digitalisation. 

At the end of September 2024, the Sunrise customer base included around 3.1 million mobile, 1.3 million broadband and 1.0 million enhanced TV customers (RGUs), as well as thousands of companies as business customers. 

Sunrise boasts a dynamic and international environment where everyone has a voice, where perspectives are shared and where values are respected. Sunrise believes that providing equal opportunities to a diverse workforce is critical to the company’s success. Roughly 2,600 employees (FTEs) from around 80 nations contribute to the success of Sunrise with their expertise, innovative thinking and exceptional commitment, reflecting the diversity of our customers. 
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