1&1 Drillisch (1&1 AG)

1&1 Drillisch (officially 1&1 AG) is a leading German telecommunications provider headquartered in Montabaur. It operates as a subsidiary of United Internet and is currently establishing Germany's fourth mobile network using innovative OpenRAN technology. The company offers a wide range of mobile, broadband, and value-added services both through its premium 1&1 brand and various discount sub-brands.

Brand Authority Index (BAI): 88/100

Archetype: Challenger

Category: Telecommunications

Part of: United Internet

https://optimly.ai/brand/1-1-drillisch

Last analyzed: April 10, 2026