Electronic data collection (ESD) - electronic communications
Legal authorisation and purpose of data collection
The CTU's authorisation to collect data in the area of electronic communications derives from Section 115 (1) of Electronic Communications Act, which provides that the obliged person shall submit to CTU, upon the CTU’s request and within the determined reasonable period, in the form, and to the extent as specified by CTU, complete and true information, including financial information, as well as data and supporting evidence, which may be needed to carry out the activities for which CTU is responsible on the basis of this Electronic Communications Act.
According to Section 115 (1) of the Electronic Communications Act, an obliged person is a person performing communication activities and other relevant persons operating in the electronic communications sector or in a sector closely related to the electronic communications sector or a public authority.
According to Section 115 (2) of the Electronic Communications Act, obliged persons have to provide CTU with true and complete information on regular basis, as of 30 June and 31 December through a software application on an electronic form. Information requirements are further regulated in compliance with Section 115 (3) of the Electronic Communications Act.
The forms published in the software application - Electronic Data Collection System (ESD System), are used for the collection of data for carrying out analyses of relevant markets, international reporting, the performance of the State Statistical Service and for geographical mapping pursuant to Section 115a of the Electronic Communications Act. CTU uses the collected data for its activities and submits them to other state administration authorities and usually in aggregated form to international organisations, in particular to European Union institutions, most often to the European Commission.
The obligation to submit the requested information to CTU is fulfilled by submitting the forms exclusively in electronic form through the ESD system, i.e. not by submitting them in paper form or via electronic mail.
Information about the ESD system and how to register
The ESD system is an information system of CTU with secure access used for the transmission of required information from obliged persons via assigned electronic forms. They offer a user-friendly way of filling in, enabling automatic checks of completed fields, their summarisation and other functionalities.
ESD system and relevant electronic forms are available on the website:
https://monitoringtrhu.ctu.gov.cz
The ESD system is accessible only to registered users. Specific procedures for registration in the ESD system are laid down in Decree No. 52/2022 Coll., on the technical and organisational conditions for the use of the software application and the electronic form for data collection in electronic communications, as amended.
The procedure for obtaining access to the ESD system for an "authorised person" who acts on behalf of an obliged person is as follows:
The first step is to fill in the application form for access to the ESD system, which is available on the homepage of the ESD system on the above mentioned website.
According to Section 115 (3) of the Electronic Communications Act, the completed application for access to the ESD system in PDF format is necessary to be downloaded and sent via one of the means listed below:
1. electronically to the CTU data mailbox (the signature of the person authorised to act on behalf of the obliged person is replaced by sending via the obliged person's data mailbox):
ID of the CTU data mailbox: a9qaats
2. in a paper form with a certified signature of a person authorised to act on behalf of the obliged person physically to the CTU address:
Český telekomunikační úřad
poštovní přihrádka 02
225 02 Praha 025
3. by e-mail with recognised electronic signature of the person authorised to act on behalf of obliged person
e-mail address of the CTU: podatelna@ctu.cz
After receipt of a correctly and fully completed application at CTU, access to the ESD system will be activated for the applicant - authorised person. The ESD system will inform the authorised person about the activation to the e-mail address indicated in the application for access to the ESD system, or by SMS message if the applicant has chosen this method of communication in the application.
After activating access in the ESD system, the authorised person can create and subsequently administer the access for up to 3 so-called designated persons, who can only fill in and submit the forms.
Changing the authorised person for the ESD system can also be done through the Application for access to the ESD system.
Form templates published in the ESD system are to be found here: https://ctu.gov.cz/en/model-forms. These templates are for information only. The obliged person is always informed about allocation of a new form by the ESD system via an e-mail (or SMS) sent to the contact address of active users registered in the ESD system (in the role of authorised or designated person).
CTU manages the obtained data in accordance with the legal regulations, with particular emphasis on the correct handling of personal data and data representing business secrets.
Questions about the transmission of information, data and documents through the ESD system shall be addressed to CTU via the email address monitoringtrhu@ctu.cz.
Login to the ESD system is possible only through the Citizen Identity Portal for citizens of the Czech Republic and for citizens of countries that have implemented Regulation (EU) No 910/2014 of the European Parliament and of the Council of 23 July 2014 on electronic identification and trust services for electronic transactions in the internal market and repealing Directive 1999/93/EC (eIDAS Regulation).
In order to successfully log in to the ESD system, it is necessary to give consent to the use of identification data (in the case of citizens of the Czech Republic, at least surname, first name, document number and type of document or surname, first name, date of birth and address of permanent residence) after being redirected to the Citizen Identity Portal (from the homepage of the ESD system).
Citizens of countries that have not implemented the eIDAS Regulation log in to the ESD system using a login and password.
How to fill in ART forms (in CZ language only)
ART252 form - Services provided in electronic communications (data for 2025)
- Changes in ART252 form compared to the previous period and Annex ART252 - Changes in form template
- Template of ART252 form
- FAQ from the obliged persons regarding the data collection in the ESD system
- How to fill in geographic data in Section 2 Annexes of ART252 form
- FAQ from the obliged persons regarding the geographic data collection in ART252
- How to import geographic data into ART252 form annexes
- Data record comprise the structure of data for their import to individual annexes of ART242 form for submission of geographic data on Internet access service and infrastructure to provide such service, using a “CSV” file.
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Instructions for obtaining a list of address points from public sources available on the ČÚZK website - These instructions briefly describe the procedure for obtaining a list of address points, including their RÚIAN codes, in a specific location using specified parameters or by marking the area on the map of the Czech Republic within the Public Remote Access (VDP) and Access to the Land Registry available on the website of the State Administration of Land Surveying and Cadastre (ČÚZK). This list can then be used to prepare a CSV file, which is used to import geographical data into the individual annexes of the ART form.
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Instructional video on how to fill in the ART222 form (can also be used for ART252 form)
BH25 form - Geographical data on optic fibre connection and distribution networks and their hand-over points
- Template of BH25 form
- How to fill out geographic data in the BH25 form
- FAQ from the obliged persons regarding the geographic data collection in BH25 form
- Data record comprise the structure of data for their import to individual annexes of form BH25 for submission of geographical data on optic fibre connection and distribution networks and their hand-over points using a “CSV” file.
- The list of municipalities according to RÚIAN shall be used to prepare the file in CSV format that is used to import geographical data to individual annexes of form BH25. List of municipalities and their codes according to RÚIAN are available here, or you can use complete list of municipalities up to 2000 inhabitants.




