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ČEZNET

ČEZNET is a Czech internet service provider operating its own FTTH fibre-optic network, part of the ČEZ Group.

Last updated September 27, 2026

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Overview

ČEZNET (ČEZNET s.r.o.) is a Czech telecommunications and internet service provider that markets fibre-optic broadband under the ČEZNET brand. Its consumer proposition is built around its own FTTH (fibre-to-the-home) optical network, which the company states it builds using the backbone networks of the ČEZ Group. The brand positions itself on connection stability, network security, high capacity and a personal, service-oriented approach to customers. The core retail offer is a tiered family of fibre packages — ČEZNET Optika 100, 300, 500 and 1000 — delivering symmetrical speeds of 100, 300, 500 and 1000 Mb/s respectively. Each tier is advertised with a router included in the price and free installation when the customer signs an open-ended contract. The packages are pitched at different usage profiles, from basic surfing and e-mail up to high-performance applications and simultaneous use across many devices. Beyond consumer connectivity, ČEZNET also provides hosting and cloud-type services for data storage. Under the EU Digital Services Act (DSA) the company identifies itself as a provider of a 'mere conduit' service and, for its Cloud and similar storage services, as a hosting service provider, maintaining a single point of contact for authorities and a notice-and-action form for illegal content. ČEZNET is associated with the ČEZ Group, the large Czech energy group, and its network build-out is described as drawing on ČEZ Group backbone infrastructure. The company is a Czech entity and serves the Czech market. Its marketing emphasises a worry-free switch from another provider, with ČEZNET handling the termination notice to the incumbent operator, professional installation and individual customer care.

History

ČEZNET s.r.o. is a Czech company operating as an internet and telecommunications service provider under the ČEZNET brand. It is associated with the ČEZ Group, the major Czech energy group, and its fibre network is described on its own website as being built with the use of the backbone networks of the ČEZ Group, with optical lines run all the way to the customer. The brand's public-facing business is the sale of fibre-optic broadband to households and other customers in the Czech Republic. Its product line is organised into speed tiers — ČEZNET Optika 100, 300, 500 and 1000 — offering symmetrical speeds from 100 Mb/s up to 1000 Mb/s. The company markets these packages with a router included and free installation on open-ended contracts, and it promotes a managed migration process in which it files the termination notice with a customer's existing provider on the customer's behalf. In addition to connectivity, ČEZNET provides hosting and cloud-type services for data storage. As a regulated entity under the EU Digital Services Act (Regulation (EU) 2022/2065), the company states that it acts as a provider of a 'mere conduit' service and, for its Cloud and similar storage services, as a hosting service provider. It maintains a single point of contact for member-state authorities, the European Commission and the European Board for Digital Services, and it makes available a form for reporting illegal content in connection with its hosting service. The available evidence does not specify the company's founding year, its registered office address, its management, or its precise ownership structure within the ČEZ Group. What is clear is that ČEZNET is an active Czech provider whose identity is tied to its own FTTH optical network and to the ČEZ Group's infrastructure.

Products and positioning

Consumer fibre-optic internet provider on its own FTTH network, emphasising stability, security, capacity and personal service, backed by ČEZ Group infrastructure.

  • ČEZNET Optika 100

    100 Mb/s fibre package for comfortable surfing and e-mail, router included, free installation with an open-ended contract.

  • ČEZNET Optika 300

    300 Mb/s fibre package for family streaming and video calls, router included, free installation with an open-ended contract.

  • ČEZNET Optika 500

    500 Mb/s fibre package for smooth operation of multiple simultaneous devices, router included, free installation with an open-ended contract.

  • ČEZNET Optika 1000

    1000 Mb/s fibre package for high-performance applications, router included, free installation with an open-ended contract.

  • Cloud and hosting services

    Hosting and similar services for data storage, provided under the DSA hosting framework.

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