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Who is Drillisch Online?
Drillisch Online is a German telecommunications service provider that operates as a Mobile Virtual Network Operator (MVNO) and digital communications brand under the 1&1 group, focusing on consumer and business mobile services.
- MVNO offerings for consumer and business mobile telephony and data services (mobile communications).
- Portfolio of SIM-only and contract-based mobile tariffs across multiple price and usage tiers (connectivity services).
- Brand and service integration within the 1&1 group, including use of group network infrastructure and platforms (telecom infrastructure).
- Online-first customer acquisition, contract management, and self-service via web portals and digital channels (digital customer portal).
- Value-added options such as data add-ons, roaming options, and optional hardware bundles aligned to mobile contracts (mobile value-added services).
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More About Drillisch Online
Drillisch Online operates within the 1&1 group as a MVNO that delivers mobile telephony and data services to private and business customers in Germany. For enterprise and institutional environments, its role is primarily as a contractual and operational provider of SIM-based connectivity, either for employee communications or for device fleets that require standardized mobile access. The company focuses on tariff structures and digital processes that can be integrated into broader corporate telecommunications strategies.
The company’s offerings center on SIM-only and contract-based mobile tariffs (connectivity services), which include voice, SMS, and mobile data. These tariffs map to categories such as enterprise mobility, endpoint connectivity, and broadband-on-the-go. Customers typically use standard cellular network technologies and protocols, including Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), and, where available via the 1&1 group or partner networks, 5G (mobile network technologies). Drillisch Online leverages network infrastructure from within the 1&1 group and, depending on configuration, partner network operators, aligning its services with established 3rd Generation Partnership Project (3GPP) standards for mobile communications.
From an architectural standpoint, Drillisch Online functions as a service and tariff layer on top of underlying radio access and core network infrastructure. Enterprise users interact mainly with the company’s digital portals for contract initiation, Subscriber Identity Module (SIM) activation, tariff changes, and consumption monitoring (digital customer portal). These functions support integration into internal procurement and IT asset management processes, where SIM cards are treated as managed assets associated with users, devices, or cost centers. Online contract management can reduce reliance on physical retail channels and simplifies administration for distributed organizations.
Compared with network-owning operators, Drillisch Online concentrates on tariff design, digital user experience, and contract lifecycle handling rather than on the build-out of radio access networks. For enterprises, this means that network quality and coverage follow the capabilities of the 1&1 group infrastructure and any associated roaming or partner arrangements, while Drillisch Online provides the commercial models and customer care interfaces. This structure places the company in marketplace categories such as MVNO, mobile connectivity provider, and digital telecom brand within the broader 1&1 ecosystem.
In addition to baseline connectivity, Drillisch Online offers value-added options such as additional data packages, roaming options, and in some cases device or hardware bundles aligned with mobile service contracts (mobile value-added services). These capabilities allow organizations to align connectivity plans with different user profiles, such as field staff, office employees, or low-usage endpoints. Overall, Drillisch Online fits into enterprise telecommunications directories as a MVNO and digital connectivity provider operating under the 1&1 group.
Our description of Drillisch Online. Updated December 2025.