[8] In November 2024, Liberty Global completed the spin-off of Sunrise, turning it into an independent public entity operating autonomously in the Swiss telecommunications market.

The current company was created out of the fusion between diAx and the original Sunrise Communications in 2001. diAx was founded in 1997, started operating in December 1998, and belonged to 40% of the American SBC Communications, 50% of Swiss energy suppliers, and 10% of the Swiss companies Federal RWE AG.

Sunrise belonged mainly to the BT Group and the Danish Tele Danmark (TDC A/S), with Migros and the Swiss Federal Railways as junior partners.

As a new logo, the "Sunrise" label is written in the Frutiger font style, which is intended to underline the Swiss anchorage of the company.

[9] In November 2009, France Télécom and TDC announced the intention to merge their Swiss subsidiaries Orange Communications and Sunrise.

[11] In February 2019, Sunrise agreed on the acquisition of UPC Switzerland from Liberty Global for CHF6.3 billion,[12] pending financing and approval of the Swiss trade commission.

[16][17] When it became clear in October 2019 that the takeover deal would not receive a majority of shareholder votes, the extraordinary general meeting was cancelled and the contract with Liberty Global, the owner of UPC, was terminated.

[20] At the end of May 2020, it became known that Sunrise was able to achieve partial success in a far-reaching lawsuit against Swisscom regarding the allegation of abuse of its dominant position in the market for broadband Internet access (ADSL) in the years 2001 to 2007 and their resulting pricing policy.

This transaction resulted in Sunrise becoming an independent public entity, operating autonomously in the Swiss telecommunications market.

The move allowed Liberty Global shareholders to participate directly in Sunrise's future performance.