Collecting data on electronic communications networks
CTU performs by its Electronic data collection (ESD) system a regular annual data collection on the existing electronic communication networks allowing the provision of internet access service with different speed cathegories. The data is sorted geographically according to address points as defined in the Register of territorial identification, addresses and immovable property (RÚIAN). CTU collects data disposable to 31 December of the year.
The data is collected, among others, in compliance with the needs of Ministry of Industry and Trade (hereinafter "MPO") which further uses this data to define intervention areas where subsidy support for the construction of electronic communications networks should be directed. CTU uses the collected data for secondary purposes, in particular market monitoring, market analyses, inspection, international reporting and the National Statistical Service.
Operators submit the numbers of disposable connections for each of the relevant technologies (typically FTTH, FTTB, xDSL, CATV, wireless technologies in licenced or free bands). Such connections are existing or easily deployable (i.e. without unreasonably high investment costs and in short time), sorted according to the achievable effective speed of the internet access service up to 30 Mbit/s, between 30 and 100 Mbit/s, between 100 and 300 Mbit/s, between 300 Mbit/s and 1 Gbit/s and over 1 Gbit/s. The detail of the speed intervals may not be the same from period to period (year to year).
For identification of locations potentially qualified for subsidies CTU proccessed the obtained data and aggregates them to higher regional units, so called basic residential units (ZSJ). CTU determined by calculation a “colour marking” of all the individual ZSJ which expressed the level of coverage of the residential unit by the infrastructure. Colour marking was determined by the ratio of number of address points with at least one disposable NGA connections to the number of all address points in the ZSJ. If the ratio is lower than 50% the ZSJ is marked as “white”. If the ratio is higher, CTU investigates the number of undertaking which indicated any number (above zero) of disposable connections in the unit. If the number of such undertakings equals to 1 the unit is marked as “grey”. In all other cases the unit is marked as “black”.
Since 2022, CTU no longer divides individual ZSJs into white, grey and black, but determines the nature of ZSJs only based on the percentage of coverage (in 20% intervals).
The collected data and the results of above mentioned data processing are submitted by CTU to MPO. Further use of the results to identify specific intervention areas is already within the competence of the MPO, which applies its own methodologies to define "colour marking" of ZSJ. Comprehensive information on the coverage of the Czech Republic by electronic communications networks enabling access to the Internet at a fixed location is published by the MPO here: Internet Map.